Balancing Chemical Equations

Front

What is the right part of a chemical equation called?

Back

Products

Front

What is the left part of a chemical equation called?

Back

Reactants

Front

Balance the following equation: ___ H2 + ___ O2 → ___ H2O

Back

2, 1, 2

Front

What does the Law of Conservation of Mass state?

Back

Matter cannot be gained or lost in a chemical reaction.

Front

Balance this equation: _Al + _HCl → _H2 + _AlCl3

Back

2, 6, 3, 2

Front

What is a chemical equation?

Back

A representation of a chemical reaction using symbols and formulas.

Front

What is the purpose of balancing chemical equations?

Back

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

Front

What are coefficients in a chemical equation?

Back

Numbers placed before compounds to indicate the number of molecules involved in the reaction.

Front

What are the signs of a chemical reaction?

Back

Color change, gas production, temperature change, and precipitate formation.

Front

What is a reactant?

Back

A substance that undergoes change during a chemical reaction.