A chemical change occurs when a piece of wood . a. is split
b. is painted
c. decays
d. is cut

Chemical change leads to the formation of new substances. A chemical change is said to have occurred when the piece of wood decays.

A chemical change is said to have occurred when new substances are formed. Hence, in a chemical change, one substance is converted into another.

When a piece of wood decays, a cascade of chemical transformations occur leading to a change in the composition of the wood and carbon dioxide is produced.

Learn more:link

yes

explanation:

search chemistry final b exam in google and a site called quizlet will pop up

answer; talc and gypsum;