VIRTUAL CHEMISTRY WORKBENCH · EXPERIMENT 09

Conservation of Mass

Compare total mass before and after a reaction in open and closed systems.

Interactive modelLive observationsNotebook & assessmentCBSE Chemistry

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🎛️ Experiment controls

Change the variables, run the model and compare the predicted observations. The controls are designed around this experiment's concepts.

Reactant A mass (g)Reactant B mass (g)

System

Ready to investigate

Compare total mass before and after a reaction in open and closed systems.

Visual feedback changes with your experiment settings.

⚖️

Experiment readyAdjust a condition and run the model to see the predicted outcome.

LIVEEXPERIMENT STATE

09LAB NUMBER

READYMODEL STATUS

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Record trials as you explore. Export observations for your practical record.

Time	Observation	Inference

In a closed system, total mass during a chemical reaction…

Remains constant Always increases Always decreases

Choose an answer to complete the mission.