Question

which situation describes a chemical change?
A. Baking soda added to vinegar gives off carbon dioxide gas.
B. Chocolate changes from a solid to a liquid when heated.
C. Rubbing pencil lead onto paper changes the color of the paper.
D. Clay pressed into a mold takes on a shape of a mold.

Answer 1

Answer:

option A. is the correct option.

Baking soda added to vinegar gives off carbon dioxide gas

this describes a chemical change

Answer 2

Answer:

B) chocolate changes from a solid to a liquid when heated