<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <meta name="aspect-ratio" content="1:1">
  <style>
    * {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
      font-family: system-ui, -apple-system, sans-serif;
      user-select: none;
      -webkit-user-select: none;
    }

    body {
      background: #ffffff;
      color: #1e2945;
      padding: 8px;
      display: flex;
      flex-direction: column;
      gap: 8px;
      width: 100%;
      min-height: 100%;
    }

    .rule-card {
      background: #f8fafc;
      border: 1.5px solid #e2e8f0;
      border-radius: 10px;
      padding: 8px 10px;
      display: flex;
      flex-direction: column;
      gap: 6px;
    }

    .header-row {
      display: flex;
      align-items: center;
      justify-content: space-between;
    }

    .anion-group {
      display: flex;
      align-items: center;
      gap: 5px;
    }

    .anion-tag {
      font-weight: 700;
      font-size: 15px;
      color: #0f172a;
      background: #e2e8f0;
      padding: 2px 7px;
      border-radius: 6px;
    }

    .badge-soluble {
      display: inline-flex;
      align-items: center;
      gap: 3px;
      background: #ecfdf5;
      color: #15803d;
      border: 1px solid #86efac;
      padding: 2px 8px;
      border-radius: 12px;
      font-size: 12px;
      font-weight: 700;
    }

    .exception-box {
      background: #fef2f2;
      border: 1.5px dashed #f87171;
      border-radius: 8px;
      padding: 6px 8px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 6px;
    }

    .alert-label {
      display: flex;
      align-items: center;
      gap: 4px;
      font-size: 11px;
      font-weight: 800;
      color: #b91c1c;
      text-transform: uppercase;
      letter-spacing: 0.3px;
      white-space: nowrap;
    }

    .ions-list {
      display: flex;
      flex-wrap: wrap;
      gap: 4px;
    }

    .cation-btn {
      background: #ffffff;
      border: 1px solid #fca5a5;
      color: #b91c1c;
      font-weight: 700;
      font-size: 13px;
      padding: 2px 7px;
      border-radius: 5px;
      cursor: pointer;
      box-shadow: 0 1px 2px rgba(0,0,0,0.04);
      transition: background 0.2s, box-shadow 0.2s;
    }

    .cation-btn.active {
      background: #dc2626;
      color: #ffffff;
      border-color: #dc2626;
      box-shadow: 0 0 0 2px rgba(220, 38, 38, 0.25);
    }

    /* Live Preview Section */
    .preview-box {
      background: #f1f5f9;
      border: 1.5px solid #cbd5e1;
      border-radius: 10px;
      padding: 8px 12px;
      display: flex;
      align-items: center;
      gap: 12px;
      min-height: 58px;
    }

    .beaker-icon {
      width: 32px;
      height: 42px;
      border: 2.5px solid #64748b;
      border-top: none;
      border-radius: 0 0 7px 7px;
      position: relative;
      background: #ffffff;
      overflow: hidden;
      flex-shrink: 0;
    }

    .beaker-liquid {
      position: absolute;
      bottom: 0;
      left: 0;
      right: 0;
      height: 75%;
      background: #e0f2fe;
      transition: background 0.3s;
    }

    .beaker-precipitate {
      position: absolute;
      bottom: 0;
      left: 0;
      right: 0;
      height: 35%;
      background: #eab308;
      opacity: 0;
      transition: opacity 0.3s, transform 0.3s;
      transform: translateY(6px);
    }

    .beaker-precipitate.visible {
      opacity: 1;
      transform: translateY(0);
    }

    .beaker-precipitate.white-ppt {
      background: #cbd5e1;
    }

    .status-content {
      display: flex;
      flex-direction: column;
      gap: 2px;
    }

    .formula-display {
      font-size: 14px;
      font-weight: 800;
      color: #0f172a;
    }

    .result-state {
      font-size: 12px;
      font-weight: 700;
      display: flex;
      align-items: center;
      gap: 4px;
    }

    .state-insoluble {
      color: #dc2626;
    }

    .state-soluble {
      color: #16a34a;
    }

    sup {
      font-size: 0.7em;
      line-height: 0;
    }
    sub {
      font-size: 0.7em;
      line-height: 0;
    }
  </style>
</head>
<body>

  
  <div class="rule-card">
    <div class="header-row">
      <div class="anion-group">
        <span class="anion-tag">Cl<sup>−</sup></span>
        <span class="anion-tag">Br<sup>−</sup></span>
        <span class="anion-tag">I<sup>−</sup></span>
      </div>
      <span class="badge-soluble">✓ Soluble</span>
    </div>
    <div class="exception-box">
      <span class="alert-label">⚠️ Exceptions</span>
      <div class="ions-list">
        <button type="button" class="cation-btn" data-type="halide" data-formula="AgCl" data-color="white" data-cation="Ag⁺" data-anion="Cl⁻">Ag⁺</button>
        <button type="button" class="cation-btn active" data-type="halide" data-formula="PbI₂" data-color="yellow" data-cation="Pb²⁺" data-anion="I⁻">Pb²⁺</button>
        <button type="button" class="cation-btn" data-type="halide" data-formula="Hg₂Cl₂" data-color="white" data-cation="Hg₂²⁺" data-anion="Cl⁻">Hg₂<sup>2+</sup></button>
      </div>
    </div>
  </div>

  
  <div class="rule-card">
    <div class="header-row">
      <div class="anion-group">
        <span class="anion-tag">SO<sub>4</sub><sup>2−</sup></span>
      </div>
      <span class="badge-soluble">✓ Soluble</span>
    </div>
    <div class="exception-box">
      <span class="alert-label">⚠️ Exceptions</span>
      <div class="ions-list">
        <button type="button" class="cation-btn" data-type="sulfate" data-formula="BaSO₄" data-color="white" data-cation="Ba²⁺" data-anion="SO₄²⁻">Ba²⁺</button>
        <button type="button" class="cation-btn" data-type="sulfate" data-formula="PbSO₄" data-color="white" data-cation="Pb²⁺" data-anion="SO₄²⁻">Pb²⁺</button>
        <button type="button" class="cation-btn" data-type="sulfate" data-formula="CaSO₄" data-color="white" data-cation="Ca²⁺" data-anion="SO₄²⁻">Ca²⁺</button>
        <button type="button" class="cation-btn" data-type="sulfate" data-formula="SrSO₄" data-color="white" data-cation="Sr²⁺" data-anion="SO₄²⁻">Sr²⁺</button>
      </div>
    </div>
  </div>

  
  <div class="preview-box">
    <div class="beaker-icon">
      <div class="beaker-liquid"></div>
      <div class="beaker-precipitate visible" id="precipitate"></div>
    </div>
    <div class="status-content">
      <div class="formula-display" id="formulaText">Pb²⁺ + 2 I⁻ → PbI₂</div>
      <div class="result-state state-insoluble" id="statusText">⬇ Insoluble Precipitate</div>
    </div>
  </div>

  <script>
    const buttons = document.querySelectorAll('.cation-btn');
    const pptEl = document.getElementById('precipitate');
    const formulaEl = document.getElementById('formulaText');
    const statusEl = document.getElementById('statusText');

    function updatePreview(btn) {
      buttons.forEach(b => b.classList.remove('active'));
      btn.classList.add('active');

      const formula = btn.getAttribute('data-formula');
      const color = btn.getAttribute('data-color');
      const cation = btn.getAttribute('data-cation');
      const anion = btn.getAttribute('data-anion');

      pptEl.className = 'beaker-precipitate visible';
      if (color === 'white') {
        pptEl.classList.add('white-ppt');
      }

      formulaEl.textContent = `${cation} + ${anion} → ${formula} (s)`;
      statusEl.className = 'result-state state-insoluble';
      statusEl.textContent = '⬇ Insoluble Precipitate';
    }

    buttons.forEach(btn => {
      btn.addEventListener('click', () => updatePreview(btn));
    });
  </script>
</body>
</html>

Solubility Rules for Common Ionic Compounds

<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <style>
    * { box-sizing: border-box; margin: 0; padding: 0; }
    body {
      font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
      color: #1e2945;
      background: #f8fafc;
      padding: 8px;
      display: flex;
      flex-direction: column;
      align-items: center;
      min-height: 100%;
    }

    .preset-bar {
      display: flex;
      flex-wrap: wrap;
      gap: 5px;
      justify-content: center;
      margin-bottom: 8px;
      width: 100%;
      max-width: 480px;
    }

    .preset-btn {
      background: #ffffff;
      border: 1.5px solid #e2e8f0;
      border-radius: 6px;
      padding: 4px 8px;
      font-size: 12px;
      font-weight: 600;
      color: #475569;
      cursor: pointer;
      box-shadow: 0 1px 2px rgba(0,0,0,0.04);
      transition: background 0.15s, border-color 0.15s, color 0.15s;
    }

    .preset-btn:hover {
      border-color: #94a3b8;
    }

    .preset-btn.active {
      background: #2563eb;
      border-color: #2563eb;
      color: #ffffff;
    }

    .flow-container {
      display: flex;
      flex-direction: column;
      gap: 5px;
      width: 100%;
      max-width: 480px;
    }

    .node {
      background: #ffffff;
      border: 1.5px solid #e2e8f0;
      border-radius: 8px;
      padding: 8px 10px;
      display: flex;
      flex-direction: column;
      gap: 6px;
      transition: border-color 0.2s, box-shadow 0.2s, background 0.2s;
    }

    @media (min-width: 480px) {
      .node {
        flex-direction: row;
        align-items: center;
        justify-content: space-between;
        gap: 8px;
        padding: 8px 12px;
      }
    }

    .node.active {
      border-color: #3b82f6;
      background: #f0f7ff;
      box-shadow: 0 0 0 2px rgba(59, 130, 246, 0.2);
    }

    .node-left {
      display: flex;
      align-items: center;
      gap: 8px;
      min-width: 0;
    }

    .step-num {
      width: 22px;
      height: 22px;
      background: #f1f5f9;
      color: #64748b;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 11px;
      font-weight: 700;
      flex-shrink: 0;
    }

    .node.active .step-num {
      background: #3b82f6;
      color: #ffffff;
    }

    .node-content {
      display: flex;
      flex-direction: column;
      font-size: 12.5px;
      line-height: 1.25;
      min-width: 0;
    }

    .node-main {
      font-weight: 700;
      color: #1e293b;
      word-break: break-word;
    }

    .node-sub {
      font-size: 11px;
      color: #64748b;
      margin-top: 1px;
      word-break: break-word;
    }

    .branches {
      display: flex;
      flex-wrap: wrap;
      gap: 4px;
      align-items: center;
      padding-left: 30px;
    }

    @media (min-width: 480px) {
      .branches {
        padding-left: 0;
        flex-shrink: 0;
        justify-content: flex-end;
      }
    }

    .badge {
      font-size: 11px;
      font-weight: 600;
      padding: 3px 6px;
      border-radius: 4px;
      opacity: 0.4;
      white-space: nowrap;
      transition: opacity 0.2s, box-shadow 0.2s, font-weight 0.2s;
    }

    .badge.highlight {
      opacity: 1;
      font-weight: 700;
      box-shadow: 0 1px 3px rgba(0,0,0,0.12);
    }

    .badge-aq {
      background: #dcfce7;
      color: #15803d;
      border: 1px solid #86efac;
    }

    .badge.badge-aq.highlight {
      border-color: #16a34a;
      background: #bbf7d0;
    }

    .badge-ppt {
      background: #fee2e2;
      color: #b91c1c;
      border: 1px solid #fca5a5;
    }

    .badge.badge-ppt.highlight {
      border-color: #dc2626;
      background: #fecaca;
    }

    .badge-next {
      background: #f1f5f9;
      color: #475569;
      border: 1px solid #cbd5e1;
    }

    .badge.badge-next.highlight {
      border-color: #94a3b8;
      background: #e2e8f0;
      color: #1e293b;
    }

    .arrow-down {
      text-align: center;
      font-size: 12px;
      color: #cbd5e1;
      line-height: 1;
      margin: -1px 0;
    }

    .arrow-down.active {
      color: #3b82f6;
      font-weight: bold;
    }

    .result-card {
      margin-top: 6px;
      background: #ffffff;
      border: 1.5px solid #e2e8f0;
      border-radius: 8px;
      padding: 8px 12px;
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      justify-content: space-between;
      gap: 6px;
      width: 100%;
      max-width: 480px;
    }

    .result-title {
      font-size: 12px;
      font-weight: 700;
      color: #334155;
    }

    .result-state {
      font-size: 13px;
      font-weight: 800;
      display: flex;
      align-items: center;
      gap: 4px;
    }

    .state-aq { color: #15803d; }
    .state-ppt { color: #dc2626; }
  </style>
</head>
<body>

  
  <div class="preset-bar">
    <button class="preset-btn active" data-id="KI">KI</button>
    <button class="preset-btn" data-id="PbNO32">Pb(NO₃)₂</button>
    <button class="preset-btn" data-id="PbI2">PbI₂</button>
    <button class="preset-btn" data-id="AgCl">AgCl</button>
    <button class="preset-btn" data-id="BaSO4">BaSO₄</button>
    <button class="preset-btn" data-id="CaCO3">CaCO₃</button>
  </div>

  
  <div class="flow-container">

    
    <div class="node" id="step1">
      <div class="node-left">
        <div class="step-num">1</div>
        <div class="node-content">
          <div class="node-main">Group 1, NH₄⁺, or NO₃⁻?</div>
          <div class="node-sub">Li⁺, Na⁺, K⁺, NH₄⁺, NO₃⁻</div>
        </div>
      </div>
      <div class="branches">
        <div class="badge badge-aq" id="b1-yes">YES → Soluble (aq)</div>
        <div class="badge badge-next" id="b1-no">NO → Step 2</div>
      </div>
    </div>

    <div class="arrow-down" id="arr1">↓</div>

    
    <div class="node" id="step2">
      <div class="node-left">
        <div class="step-num">2</div>
        <div class="node-content">
          <div class="node-main">Cl⁻, Br⁻, or I⁻?</div>
          <div class="node-sub">Exceptions: Ag⁺, Pb²⁺, Hg₂²⁺</div>
        </div>
      </div>
      <div class="branches">
        <div class="badge badge-ppt" id="b2-exc">Ag⁺/Pb²⁺ → (s)</div>
        <div class="badge badge-aq" id="b2-other">Other → (aq)</div>
        <div class="badge badge-next" id="b2-no">NO → Step 3</div>
      </div>
    </div>

    <div class="arrow-down" id="arr2">↓</div>

    
    <div class="node" id="step3">
      <div class="node-left">
        <div class="step-num">3</div>
        <div class="node-content">
          <div class="node-main">Sulfate (SO₄²⁻)?</div>
          <div class="node-sub">Exceptions: Ba²⁺, Pb²⁺, Ca²⁺, Sr²⁺</div>
        </div>
      </div>
      <div class="branches">
        <div class="badge badge-ppt" id="b3-exc">Ba²⁺/Pb²⁺/Ca²⁺ → (s)</div>
        <div class="badge badge-aq" id="b3-other">Other → (aq)</div>
        <div class="badge badge-next" id="b3-no">NO → Step 4</div>
      </div>
    </div>

    <div class="arrow-down" id="arr3">↓</div>

    
    <div class="node" id="step4">
      <div class="node-left">
        <div class="step-num">4</div>
        <div class="node-content">
          <div class="node-main">CO₃²⁻, PO₄³⁻, or S²⁻?</div>
          <div class="node-sub">Most other polyatomic anions</div>
        </div>
      </div>
      <div class="branches">
        <div class="badge badge-ppt" id="b4-yes">Insoluble (s)</div>
      </div>
    </div>

  </div>

  
  <div class="result-card">
    <span class="result-title" id="res-formula">KI (Potassium Iodide)</span>
    <div class="result-state" id="res-state">
      <span class="state-aq">Soluble (aq)</span>
    </div>
  </div>

  <script>
    const compounds = {
      KI: {
        formula: 'KI (Potassium Iodide)',
        step: 1,
        branch: 'b1-yes',
        status: 'Soluble (aq)',
        isAq: true,
        arrows: []
      },
      PbNO32: {
        formula: 'Pb(NO₃)₂ (Lead Nitrate)',
        step: 1,
        branch: 'b1-yes',
        status: 'Soluble (aq)',
        isAq: true,
        arrows: []
      },
      PbI2: {
        formula: 'PbI₂ (Lead Iodide)',
        step: 2,
        branch: 'b2-exc',
        status: 'Insoluble (s) Precipitate',
        isAq: false,
        arrows: ['arr1']
      },
      AgCl: {
        formula: 'AgCl (Silver Chloride)',
        step: 2,
        branch: 'b2-exc',
        status: 'Insoluble (s) Precipitate',
        isAq: false,
        arrows: ['arr1']
      },
      BaSO4: {
        formula: 'BaSO₄ (Barium Sulfate)',
        step: 3,
        branch: 'b3-exc',
        status: 'Insoluble (s) Precipitate',
        isAq: false,
        arrows: ['arr1', 'arr2']
      },
      CaCO3: {
        formula: 'CaCO₃ (Calcium Carbonate)',
        step: 4,
        branch: 'b4-yes',
        status: 'Insoluble (s) Precipitate',
        isAq: false,
        arrows: ['arr1', 'arr2', 'arr3']
      }
    };

    function updateView(id) {
      const data = compounds[id];
      if (!data) return;

      // Update buttons
      document.querySelectorAll('.preset-btn').forEach(btn => {
        btn.classList.toggle('active', btn.dataset.id === id);
      });

      // Reset nodes & badges
      for (let i = 1; i <= 4; i++) {
        document.getElementById(`step${i}`).classList.remove('active');
      }
      document.querySelectorAll('.badge').forEach(b => b.classList.remove('highlight'));
      document.querySelectorAll('.arrow-down').forEach(a => a.classList.remove('active'));

      // Highlight active node and branch
      document.getElementById(`step${data.step}`).classList.add('active');
      const badge = document.getElementById(data.branch);
      if (badge) badge.classList.add('highlight');

      // Highlight traversed arrows
      data.arrows.forEach(arrId => {
        const arr = document.getElementById(arrId);
        if (arr) arr.classList.add('active');
      });

      // Highlight intermediate 'NO' badges
      if (data.step >= 2) document.getElementById('b1-no').classList.add('highlight');
      if (data.step >= 3) document.getElementById('b2-no').classList.add('highlight');
      if (data.step >= 4) document.getElementById('b3-no').classList.add('highlight');

      // Update result card
      document.getElementById('res-formula').textContent = data.formula;
      const resState = document.getElementById('res-state');
      resState.innerHTML = `<span class="${data.isAq ? 'state-aq' : 'state-ppt'}">${data.status}</span>`;
    }

    document.querySelectorAll('.preset-btn').forEach(btn => {
      btn.addEventListener('click', () => {
        clearInterval(autoTimer);
        updateView(btn.dataset.id);
      });
    });

    // Auto-cycle through compounds slowly if idle
    const ids = Object.keys(compounds);
    let curIdx = 0;
    let autoTimer = setInterval(() => {
      curIdx = (curIdx + 1) % ids.length;
      updateView(ids[curIdx]);
    }, 4000);

    updateView('KI');
  </script>
</body>
</html>

<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <meta name="aspect-ratio" content="4:3">
  <style>
    * { box-sizing: border-box; margin: 0; padding: 0; }
    body {
      background: #f8f9fa;
      font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
      color: #1e2945;
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      width: 100%;
      min-height: 100%;
      padding: 12px;
      user-select: none;
    }

    .toolbar {
      display: flex;
      gap: 8px;
      margin-bottom: 12px;
      flex-wrap: wrap;
      justify-content: center;
    }

    .btn {
      background: #ffffff;
      border: 1px solid #d1d5db;
      color: #1e2945;
      padding: 6px 14px;
      border-radius: 20px;
      font-size: 13px;
      font-weight: 600;
      cursor: pointer;
      box-shadow: 0 1px 2px rgba(0,0,0,0.05);
      transition: all 0.2s ease;
    }

    .btn.active {
      background: #2563eb;
      color: #ffffff;
      border-color: #2563eb;
      box-shadow: 0 2px 4px rgba(37,99,235,0.25);
    }

    .diagram-svg {
      width: 100%;
      max-width: 680px;
      height: auto;
      display: block;
    }

    .beaker-panel {
      cursor: pointer;
      transition: opacity 0.3s ease;
    }

    .floating-ion {
      animation: floatIon 4s ease-in-out infinite alternate;
    }
    .floating-ion-2 {
      animation: floatIon2 5s ease-in-out infinite alternate;
    }

    @keyframes floatIon {
      0% { transform: translate(0, 0); }
      100% { transform: translate(3px, -5px); }
    }
    @keyframes floatIon2 {
      0% { transform: translate(0, 0); }
      100% { transform: translate(-4px, 4px); }
    }
  </style>
</head>
<body>

  <div class="toolbar">
    <button class="btn active" id="btnBoth" onclick="setView('both')">Compare Both</button>
    <button class="btn" id="btnSol" onclick="setView('soluble')">Soluble (aq)</button>
    <button class="btn" id="btnInsol" onclick="setView('insoluble')">Insoluble (s)</button>
  </div>

  <svg class="diagram-svg" viewBox="0 0 680 430">
    <defs>
      
      <linearGradient id="waterSol" x1="0" y1="0" x2="0" y2="1">
        <stop offset="0%" stop-color="#e0f2fe" stop-opacity="0.8"/>
        <stop offset="100%" stop-color="#bae6fd" stop-opacity="0.9"/>
      </linearGradient>
      <linearGradient id="waterClear" x1="0" y1="0" x2="0" y2="1">
        <stop offset="0%" stop-color="#f0f9ff" stop-opacity="0.6"/>
        <stop offset="100%" stop-color="#e0f2fe" stop-opacity="0.7"/>
      </linearGradient>

      
      <radialGradient id="gradNa" cx="35%" cy="35%">
        <stop offset="0%" stop-color="#93c5fd"/>
        <stop offset="100%" stop-color="#2563eb"/>
      </radialGradient>
      <radialGradient id="gradNO3" cx="35%" cy="35%">
        <stop offset="0%" stop-color="#6ee7b7"/>
        <stop offset="100%" stop-color="#059669"/>
      </radialGradient>
      <radialGradient id="gradPb" cx="35%" cy="35%">
        <stop offset="0%" stop-color="#fde047"/>
        <stop offset="100%" stop-color="#ca8a04"/>
      </radialGradient>
      <radialGradient id="gradI" cx="35%" cy="35%">
        <stop offset="0%" stop-color="#d8b4fe"/>
        <stop offset="100%" stop-color="#7e22ce"/>
      </radialGradient>

      
      <g id="h2o">
        <circle cx="0" cy="0" r="4.5" fill="#ef4444"/>
        <circle cx="-3.5" cy="-3.5" r="2.8" fill="#e2e8f0" stroke="#94a3b8" stroke-width="0.8"/>
        <circle cx="3.5" cy="-3.5" r="2.8" fill="#e2e8f0" stroke="#94a3b8" stroke-width="0.8"/>
      </g>
    </defs>

    
    <g id="panelSoluble" class="beaker-panel" onclick="setView('soluble')">
      
      <rect x="50" y="10" width="220" height="34" rx="17" fill="#eff6ff" stroke="#3b82f6" stroke-width="1.5"/>
      <text x="160" y="32" text-anchor="middle" font-size="14" font-weight="700" fill="#1d4ed8">Soluble (aq)</text>

      
      <rect x="40" y="60" width="240" height="330" rx="8" fill="none" stroke="#94a3b8" stroke-width="3"/>
      <path d="M 34 60 L 50 60" stroke="#94a3b8" stroke-width="3" stroke-linecap="round"/>
      <path d="M 270 60 L 286 60" stroke="#94a3b8" stroke-width="3" stroke-linecap="round"/>

      
      <rect x="43" y="100" width="234" height="287" rx="5" fill="url(#waterSol)"/>
      <ellipse cx="160" cy="100" rx="117" ry="6" fill="#bae6fd"/>

      
      <text x="160" y="85" text-anchor="middle" font-size="13" font-weight="600" fill="#475569">Na⁺(aq) + NO₃⁻(aq)</text>

      
      <g class="floating-ion" transform="translate(105, 175)">
        <use href="#h2o" transform="translate(0, -16) rotate(0)"/>
        <use href="#h2o" transform="translate(16, 0) rotate(90)"/>
        <use href="#h2o" transform="translate(0, 16) rotate(180)"/>
        <use href="#h2o" transform="translate(-16, 0) rotate(270)"/>
        <circle cx="0" cy="0" r="11" fill="url(#gradNa)"/>
        <text x="0" y="4" text-anchor="middle" font-size="10" font-weight="bold" fill="#ffffff">Na⁺</text>
      </g>

      
      <g class="floating-ion-2" transform="translate(210, 185)">
        <use href="#h2o" transform="translate(0, -17) rotate(180)"/>
        <use href="#h2o" transform="translate(17, 0) rotate(270)"/>
        <use href="#h2o" transform="translate(0, 17) rotate(0)"/>
        <use href="#h2o" transform="translate(-17, 0) rotate(90)"/>
        <circle cx="0" cy="0" r="12" fill="url(#gradNO3)"/>
        <text x="0" y="4" text-anchor="middle" font-size="9" font-weight="bold" fill="#ffffff">NO₃⁻</text>
      </g>

      
      <g class="floating-ion-2" transform="translate(195, 305)">
        <use href="#h2o" transform="translate(0, -16) rotate(0)"/>
        <use href="#h2o" transform="translate(16, 0) rotate(90)"/>
        <use href="#h2o" transform="translate(0, 16) rotate(180)"/>
        <use href="#h2o" transform="translate(-16, 0) rotate(270)"/>
        <circle cx="0" cy="0" r="11" fill="url(#gradNa)"/>
        <text x="0" y="4" text-anchor="middle" font-size="10" font-weight="bold" fill="#ffffff">Na⁺</text>
      </g>

      
      <g class="floating-ion" transform="translate(100, 295)">
        <use href="#h2o" transform="translate(0, -17) rotate(180)"/>
        <use href="#h2o" transform="translate(17, 0) rotate(270)"/>
        <use href="#h2o" transform="translate(0, 17) rotate(0)"/>
        <use href="#h2o" transform="translate(-17, 0) rotate(90)"/>
        <circle cx="0" cy="0" r="12" fill="url(#gradNO3)"/>
        <text x="0" y="4" text-anchor="middle" font-size="9" font-weight="bold" fill="#ffffff">NO₃⁻</text>
      </g>

      
      <use href="#h2o" transform="translate(155, 235) rotate(45)"/>
      <use href="#h2o" transform="translate(68, 235) rotate(130)"/>
      <use href="#h2o" transform="translate(250, 245) rotate(215)"/>
      <use href="#h2o" transform="translate(155, 355) rotate(10)"/>

      <text x="160" y="415" text-anchor="middle" font-size="12" font-weight="600" fill="#2563eb">Free Hydrated Ions</text>
    </g>

    
    <g id="panelInsoluble" class="beaker-panel" onclick="setView('insoluble')">
      
      <rect x="410" y="10" width="220" height="34" rx="17" fill="#fefce8" stroke="#eab308" stroke-width="1.5"/>
      <text x="520" y="32" text-anchor="middle" font-size="14" font-weight="700" fill="#a16207">Insoluble (s)</text>

      
      <rect x="400" y="60" width="240" height="330" rx="8" fill="none" stroke="#94a3b8" stroke-width="3"/>
      <path d="M 394 60 L 410 60" stroke="#94a3b8" stroke-width="3" stroke-linecap="round"/>
      <path d="M 630 60 L 646 60" stroke="#94a3b8" stroke-width="3" stroke-linecap="round"/>

      
      <rect x="403" y="100" width="234" height="287" rx="5" fill="url(#waterClear)"/>
      <ellipse cx="520" cy="100" rx="117" ry="6" fill="#e0f2fe"/>

      
      <text x="520" y="85" text-anchor="middle" font-size="13" font-weight="600" fill="#475569">PbI₂(s) Precipitate</text>

      
      <use href="#h2o" transform="translate(450, 160) rotate(20)"/>
      <use href="#h2o" transform="translate(580, 150) rotate(110)"/>
      <use href="#h2o" transform="translate(515, 190) rotate(240)"/>
      <use href="#h2o" transform="translate(460, 225) rotate(75)"/>
      <use href="#h2o" transform="translate(575, 230) rotate(190)"/>

      
      <rect x="430" y="270" width="180" height="114" rx="6" fill="#fef08a" fill-opacity="0.4" stroke="#ca8a04" stroke-dasharray="3 3" stroke-width="1.5"/>

      
      <g transform="translate(442, 282)">
        
        <circle cx="16" cy="12" r="11" fill="url(#gradPb)"/><text x="16" y="16" text-anchor="middle" font-size="9" font-weight="bold" fill="#ffffff">Pb²⁺</text>
        <circle cx="48" cy="12" r="11" fill="url(#gradI)"/><text x="48" y="16" text-anchor="middle" font-size="10" font-weight="bold" fill="#ffffff">I⁻</text>
        <circle cx="80" cy="12" r="11" fill="url(#gradPb)"/><text x="80" y="16" text-anchor="middle" font-size="9" font-weight="bold" fill="#ffffff">Pb²⁺</text>
        <circle cx="112" cy="12" r="11" fill="url(#gradI)"/><text x="112" y="16" text-anchor="middle" font-size="10" font-weight="bold" fill="#ffffff">I⁻</text>
        <circle cx="144" cy="12" r="11" fill="url(#gradPb)"/><text x="144" y="16" text-anchor="middle" font-size="9" font-weight="bold" fill="#ffffff">Pb²⁺</text>

        
        <circle cx="16" cy="45" r="11" fill="url(#gradI)"/><text x="16" y="49" text-anchor="middle" font-size="10" font-weight="bold" fill="#ffffff">I⁻</text>
        <circle cx="48" cy="45" r="11" fill="url(#gradPb)"/><text x="48" y="49" text-anchor="middle" font-size="9" font-weight="bold" fill="#ffffff">Pb²⁺</text>
        <circle cx="80" cy="45" r="11" fill="url(#gradI)"/><text x="80" y="49" text-anchor="middle" font-size="10" font-weight="bold" fill="#ffffff">I⁻</text>
        <circle cx="112" cy="45" r="11" fill="url(#gradPb)"/><text x="112" y="49" text-anchor="middle" font-size="9" font-weight="bold" fill="#ffffff">Pb²⁺</text>
        <circle cx="144" cy="45" r="11" fill="url(#gradI)"/><text x="144" y="49" text-anchor="middle" font-size="10" font-weight="bold" fill="#ffffff">I⁻</text>

        
        <circle cx="16" cy="78" r="11" fill="url(#gradPb)"/><text x="16" y="82" text-anchor="middle" font-size="9" font-weight="bold" fill="#ffffff">Pb²⁺</text>
        <circle cx="48" cy="78" r="11" fill="url(#gradI)"/><text x="48" y="82" text-anchor="middle" font-size="10" font-weight="bold" fill="#ffffff">I⁻</text>
        <circle cx="80" cy="78" r="11" fill="url(#gradPb)"/><text x="80" y="82" text-anchor="middle" font-size="9" font-weight="bold" fill="#ffffff">Pb²⁺</text>
        <circle cx="112" cy="78" r="11" fill="url(#gradI)"/><text x="112" y="82" text-anchor="middle" font-size="10" font-weight="bold" fill="#ffffff">I⁻</text>
        <circle cx="144" cy="78" r="11" fill="url(#gradI)"/><text x="144" y="82" text-anchor="middle" font-size="10" font-weight="bold" fill="#ffffff">I⁻</text>
      </g>

      <text x="520" y="415" text-anchor="middle" font-size="12" font-weight="600" fill="#a16207">Locked Solid Lattice</text>
    </g>
  </svg>

  <script>
    function setView(mode) {
      const pSol = document.getElementById('panelSoluble');
      const pInsol = document.getElementById('panelInsoluble');
      const bBoth = document.getElementById('btnBoth');
      const bSol = document.getElementById('btnSol');
      const bInsol = document.getElementById('btnInsol');

      bBoth.classList.remove('active');
      bSol.classList.remove('active');
      bInsol.classList.remove('active');

      if (mode === 'soluble') {
        bSol.classList.add('active');
        pSol.style.opacity = '1';
        pInsol.style.opacity = '0.2';
      } else if (mode === 'insoluble') {
        bInsol.classList.add('active');
        pSol.style.opacity = '0.2';
        pInsol.style.opacity = '1';
      } else {
        bBoth.classList.add('active');
        pSol.style.opacity = '1';
        pInsol.style.opacity = '1';
      }
    }
  </script>
</body>
</html>

<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <meta name="aspect-ratio" content="4:3">
  <style>
    * { box-sizing: border-box; margin: 0; padding: 0; font-family: system-ui, -apple-system, sans-serif; }
    
    body {
      background: #ecfdf5;
      color: #064e3b;
      padding: 12px;
      display: flex;
      flex-direction: column;
      gap: 10px;
      min-height: 100%;
      user-select: none;
    }

    /* Main Rule Banner */
    .rule-banner {
      background: #059669;
      color: #ffffff;
      padding: 10px 14px;
      border-radius: 12px;
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      text-align: center;
      box-shadow: 0 4px 12px rgba(5, 150, 105, 0.2);
    }
    .rule-banner .icon {
      font-size: 20px;
      background: #ffffff;
      color: #059669;
      width: 28px;
      height: 28px;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 900;
      flex-shrink: 0;
    }
    .rule-banner .title {
      font-size: 15px;
      font-weight: 800;
      letter-spacing: 0.3px;
    }
    .rule-banner .sub {
      font-size: 12px;
      font-weight: 600;
      opacity: 0.9;
    }

    /* Grid layout for categories */
    .grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 10px;
      flex: 1;
    }
    @media (max-width: 380px) {
      .grid {
        grid-template-columns: 1fr;
      }
    }

    /* Category Cards */
    .category-card {
      background: #ffffff;
      border: 2px solid #a7f3d0;
      border-radius: 12px;
      padding: 10px;
      display: flex;
      flex-direction: column;
      gap: 8px;
    }
    
    .card-header {
      display: flex;
      align-items: center;
      gap: 6px;
      border-bottom: 1.5px dashed #d1fae5;
      padding-bottom: 6px;
    }
    .check-badge {
      background: #10b981;
      color: #ffffff;
      width: 22px;
      height: 22px;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 13px;
      font-weight: 900;
      flex-shrink: 0;
    }
    .card-title {
      font-size: 14px;
      font-weight: 800;
      color: #047857;
      text-transform: uppercase;
      letter-spacing: 0.5px;
    }

    .group-label {
      font-size: 11px;
      font-weight: 700;
      color: #059669;
      text-transform: uppercase;
      letter-spacing: 0.4px;
      margin-top: 2px;
    }

    /* Ion Badges */
    .ions-wrap {
      display: flex;
      flex-wrap: wrap;
      gap: 5px;
    }
    .ion-chip {
      background: #f0fdf4;
      border: 1.5px solid #6ee7b7;
      color: #065f46;
      font-size: 14px;
      font-weight: 700;
      padding: 4px 8px;
      border-radius: 8px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      cursor: pointer;
      transition: background 0.2s ease, border-color 0.2s ease;
    }
    .ion-chip sup {
      font-size: 10px;
      margin-left: 1px;
      color: #047857;
    }
    .ion-chip sub {
      font-size: 10px;
      margin-left: 1px;
    }
    .ion-chip.active {
      background: #059669;
      color: #ffffff;
      border-color: #047857;
    }
    .ion-chip.active sup, .ion-chip.active sub {
      color: #d1fae5;
    }

    /* Interactive Preview Footer */
    .preview-bar {
      background: #ffffff;
      border: 1.5px solid #6ee7b7;
      border-radius: 10px;
      padding: 8px 12px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 8px;
    }
    .preview-info {
      font-size: 13px;
      font-weight: 700;
      color: #065f46;
      display: flex;
      align-items: center;
      gap: 6px;
    }
    .status-tag {
      background: #d1fae5;
      color: #047857;
      font-size: 12px;
      font-weight: 800;
      padding: 3px 8px;
      border-radius: 6px;
      border: 1px solid #10b981;
      white-space: nowrap;
    }
  </style>
</head>
<body>

  
  <div class="rule-banner">
    <div class="icon">✓</div>
    <div>
      <div class="title">ALWAYS SOLUBLE (aq)</div>
      <div class="sub">100% Dissolved — NO EXCEPTIONS!</div>
    </div>
  </div>

  
  <div class="grid">
    
    <div class="category-card">
      <div class="card-header">
        <div class="check-badge">✓</div>
        <span class="card-title">Cations (+)</span>
      </div>
      
      <span class="group-label">Group 1 Alkali Metals</span>
      <div class="ions-wrap">
        <div class="ion-chip active" data-name="Lithium">Li<sup>+</sup></div>
        <div class="ion-chip" data-name="Sodium">Na<sup>+</sup></div>
        <div class="ion-chip" data-name="Potassium">K<sup>+</sup></div>
        <div class="ion-chip" data-name="Rubidium">Rb<sup>+</sup></div>
        <div class="ion-chip" data-name="Cesium">Cs<sup>+</sup></div>
      </div>

      <span class="group-label">Ammonium</span>
      <div class="ions-wrap">
        <div class="ion-chip" data-name="Ammonium">NH<sub>4</sub><sup>+</sup></div>
      </div>
    </div>

    
    <div class="category-card">
      <div class="card-header">
        <div class="check-badge">✓</div>
        <span class="card-title">Anions (−)</span>
      </div>

      <span class="group-label">Nitrate</span>
      <div class="ions-wrap">
        <div class="ion-chip" data-name="Nitrate">NO<sub>3</sub><sup>−</sup></div>
      </div>

      <span class="group-label">Acetate</span>
      <div class="ions-wrap">
        <div class="ion-chip" data-name="Acetate">C<sub>2</sub>H<sub>3</sub>O<sub>2</sub><sup>−</sup></div>
      </div>
    </div>
  </div>

  
  <div class="preview-bar">
    <div class="preview-info" id="previewText">
      <span>💧</span>
      <span>Contains <strong>Li<sup>+</sup></strong></span>
    </div>
    <div class="status-tag">100% Soluble (aq)</div>
  </div>

  <script>
    const chips = document.querySelectorAll('.ion-chip');
    const previewText = document.getElementById('previewText');

    chips.forEach(chip => {
      chip.addEventListener('click', () => {
        chips.forEach(c => c.classList.remove('active'));
        chip.classList.add('active');
        previewText.innerHTML = `<span>💧</span> Contains <strong>${chip.innerHTML}</strong> (${chip.getAttribute('data-name')})`;
      });
    });
  </script>
</body>
</html>

112.43(b)(11)(D)

Aligned learning resources

Related diagrams