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Modeling the Law of Conservation of Mass in Closed Systems

Chemical Reactions, Conservation of Mass, and Gas Generation

8th Grade·Science·Open Global Science

Updated 1 month ago · 4 views

Demonstrate experimentally that total mass is conserved during chemical changes in closed reaction vessels.

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Chemical Reactions, Conservation of Mass, and Gas Generation

8th Grade · Science · Open Global Science

7 lessons

Goal

Identify indicators of chemical change, write balanced chemical equations, and generate and test common gases.

7 lessons

0 of 7 done

Signs of a Chemical Reaction: Color Change, Gas, Precipitation, and HeatUp next
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Modeling the Law of Conservation of Mass in Closed SystemsYou are here
Balancing Chemical Equations Using Particulate ModelsNot started yet
Laboratory Preparation and Testing of Oxygen GasNot started yet
Laboratory Preparation and Testing of Carbon Dioxide GasNot started yet
Comparing Combustion and Thermal Decomposition ReactionsNot started yet

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Learning standards covered

OGS.9.PS.2Open Global Science Standards 2026™ · 8th Grade

Investigate chemical reactions and indicators of chemical change, identifying reacting atoms via the periodic table, verifying the law of conservation of mass through balanced chemical equations, and exploring gas generation such as the preparation and properties of oxygen and carbon dioxide.