Question

Explain why or why not the change is a chemical change or not.

A. The outside of a piece of cheese has turned green from mold.

B. An antacid tablet dissolves in water and forms carbon dioxide.

C. Ice melts and forms a puddle of water.

D. A piece of clay is broken in half.

Answer 1

Step-by-step explanation:

A. Not a chemical reaction. Mold is a small organism.

B. Chemical reaction. When antacid tablet reacts with water CO2 is emitted.

C. Not a chemical reaction ice and water are 2 states of H2O. H2O solid and H2O liquid

D. Not a chemical reaction reactants and the result is the same clay.