chemical equations basics

Front

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

Back

Products

Front

What are the blue numbers in a chemical formula called?

Back

Subscripts

Front

In a chemical reaction, what changes when NaOH + HCl → NaCl + H2O occurs?

Back

Molecules and compounds are changed.

Front

What does CaCO3 represent in chemistry?

Back

Formula

Front

What is the Law of Conservation of Matter?

Back

Matter cannot be created or destroyed; it only changes form.

Front

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

Back

Reactants

Front

What is a chemical equation?

Back

A representation of a chemical reaction using symbols and formulas.

Front

What does a coefficient in a chemical equation indicate?

Back

The number of molecules or moles of a substance.

Front

What is the purpose of balancing a chemical equation?

Back

To ensure that the number of atoms for each element is the same on both sides.

Front

What is a reactant?

Back

A substance that undergoes change in a chemical reaction.