Which situation describes a chemical change?
a. baking soda added to vinegar gives off carbon dioxide gas.
b. rubbing pencil lead onto paper changes the color of the paper.
c. chocolate changes from a solid to a liquid when heated.
d. clay pressed into a mold takes on the shape of the mold.
Answers: 1
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Which situation describes a chemical change?
a. baking soda added to vinegar gives off carbon dioxi...
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