When a substance undergoes a chemical change it is always true that
A) it liquifies
B) it changes from a solid to a gas
C) it is converted to a new kind of matter with a different composition
D) the temperature of the substance increases

Question

Quizplus · Accepted Answer

When a substance undergoes a chemical change, its atoms rearrange to form new molecules with different properties and a different composition. This means that the substance is no longer the same kind of matter it was before the change. Liquification, change from solid to gas, and temperature increase may or may not occur during a chemical change, depending on the specific reaction.

When a Substance Undergoes a Chemical Change It Is Always