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A student combines two liquids in a beaker. She observes that the mass of the combined liquid is less than the mass of the two separate liquids. The student claims that this observation shows that matter is not conserved in chemical reactions. Which statement explains why the student’s claim is incorrect?(1 point)
The reaction did not change the physical properties of the liquids.
The combined liquid was warmer than the two separate liquids.
The reaction produced a gas that escaped the beaker.
The product contained fewer atoms than the reactants.
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The reaction produced a gas that escaped the beaker.
When a gas leaves the container, the measured mass of the remaining liquid decreases even though total mass (including the escaped gas) is conserved. Chemical reactions conserve atoms; the apparent loss is due to material leaving the system.
When a gas leaves the container, the measured mass of the remaining liquid decreases even though total mass (including the escaped gas) is conserved. Chemical reactions conserve atoms; the apparent loss is due to material leaving the system.
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