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.

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