Characteristics of Chemical Reactions STEMscopes

Front

What are the substances listed on the right side of a chemical equation called?

Back

Products

Front

In a ___________ change, a substance changes into a different substance.

Back

Chemical

Front

Which action demonstrates a chemical change?

Back

Burning a piece of paper.

Front

What is the BEST definition of a chemical reaction?

Back

A change in matter that produces one or more NEW substances.

Front

What is used to represent the number of each atom in a chemical formula?

Back

The Subscript.

Front

What is a reactant?

Back

A substance that undergoes change during a chemical reaction.

Front

What is a physical change?

Back

A change that does not alter the chemical composition of a substance.

Front

What is the law of conservation of mass?

Back

Matter cannot be created or destroyed in a chemical reaction.

Front

What is a chemical equation?

Back

A symbolic representation of a chemical reaction.

Front

What is a coefficient in a chemical equation?

Back

A number placed in front of a chemical formula to indicate the number of molecules.