Balancing and Types of Chemical Equations

Front

What must be true about the number of atoms in a chemical reaction?

Back

The number of atoms you begin with must be the same as the number of atoms you end with.

Front

What does it mean if a chemical equation is unbalanced?

Back

It does not satisfy the Law of Conservation of Mass.

Front

How many grams are in 2 moles of sodium chloride (NaCl)?

Back

116.88 grams.

Front

What are the substances formed as a result of a chemical reaction called?

Back

Products.

Front

What do the blue numbers in a chemical equation represent?

Back

Subscripts.

Front

What is the Law of Conservation of Mass?

Back

Mass is neither created nor destroyed in a chemical reaction.

Front

What are reactants in a chemical equation?

Back

Substances that undergo a chemical change.

Front

What is a coefficient in a chemical equation?

Back

A number placed before a compound to indicate how many molecules are involved.

Front

What is the purpose of balancing a chemical equation?

Back

To ensure that the same number of each type of atom appears on both sides of the equation.

Front

What is a chemical equation?

Back

A representation of a chemical reaction using symbols and formulas.