Balancing Equations Review

Front

Exo means out or ________.

Back

released

Front

The substances listed on the left side of a chemical equation are called _________.

Back

Reactants

Front

How many atoms of aluminum are on each side of the equation: 4Al + 3O2 --> 2Al2O3?

Back

4

Front

What is the right part of a chemical equation called? 2H2 + O2 --> 2H2O

Back

Products

Front

What is a coefficient?

Back

The large number to the left of a formula.

Front

What is a chemical equation?

Back

A representation of a chemical reaction using symbols and formulas.

Front

What do we call the substances formed as a result of a chemical reaction?

Back

Products

Front

What is the purpose of balancing a chemical equation?

Back

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

Front

What does the law of conservation of mass state?

Back

Matter cannot be created or destroyed in a chemical reaction.

Front

What is a reactant?

Back

A substance that undergoes change during a chemical reaction.