Chemical Reactions/ Conservation of Mass

Front

What is the number before a chemical formula called?

Back

Coefficient

Front

The number of atoms before and after a reaction is __________.

Back

equal

Front

Determine whether the following equation is balanced or unbalanced: H4 + O2 ---> 2H2O

Back

Balanced

Front

Substances created during a chemical reaction are called __________.

Back

products

Front

Determine whether the following equation is balanced or unbalanced: S8 + O2 ---> 8SO3

Back

Unbalanced

Front

What do we call the substances that undergo a chemical change?

Back

Reactants

Front

In a chemical reaction, what is the principle that states mass is neither created nor destroyed?

Back

Conservation of Mass

Front

What is the term for a chemical equation that has the same number of each type of atom on both sides?

Back

Balanced equation

Front

What is the term for the small numbers in a chemical formula that indicate the number of atoms of each element?

Back

Subscript

Front

What is the process called when one or more substances change to form new substances?

Back

Chemical reaction