Balancing Chemical Equations

Front

What is the Law of Conservation of Mass?

Back

It states that matter cannot be created or destroyed.

Front

Balance this equation: _Al + _HCl --> _H2 + _AlCl3

Back

2,6,3,2

Front

What is a coefficient?

Back

The large number in front of a chemical formula.

Front

What are reactants in a chemical equation?

Back

The substances that undergo a chemical change, found on the left side of the equation.

Front

What are products in a chemical equation?

Back

The substances formed as a result of a chemical reaction, found on the right side of the equation.

Front

What does it mean to balance a chemical equation?

Back

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

Front

What is the total number of atoms present in 5Na3PO4?

Back

40

Front

What is a chemical equation?

Back

A representation of a chemical reaction using symbols and formulas.

Front

What is the difference between a reactant and a product?

Back

Reactants are the starting materials, while products are the substances formed.

Front

What is the significance of coefficients in a chemical equation?

Back

Coefficients indicate the number of molecules or moles of a substance involved in the reaction.