Balanced or Not Balanced ( Chemical Equations)

Front

What does the law of conservation of mass state?

Back

Matter can neither be made nor destroyed.

Front

What is the term for the substances on the right side of a chemical equation?

Back

Product

Front

What coefficient should be used to balance the equation N₂ + O₂ → ___ NO?

Back

2

Front

What is the term for the substances on the left side of a chemical equation?

Back

Reactant

Front

How many atoms of aluminum are present in the equation 4Al + 3O₂ → 2Al₂O₃?

Back

4

Front

What is a balanced chemical equation?

Back

An equation where the number of atoms for each element is the same on both sides.

Front

What is a reactant in a chemical reaction?

Back

A substance that undergoes change during a chemical reaction.

Front

What is a product in a chemical reaction?

Back

A substance that is formed as a result of a chemical reaction.

Front

What does a coefficient in a chemical equation represent?

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 law of conservation of mass is obeyed.