Chemical Reactions

Front

What are the reactants in the equation 2Mg + O2 -> 2MgO?

Back

The reactants are Mg and O.

Front

What are the starting materials in a chemical reaction called?

Back

Reactants.

Front

Is the equation H2 + Br2 -> 2HBr balanced or unbalanced?

Back

Balanced.

Front

Is the equation H4 + O2 -> 2H2O balanced or unbalanced?

Back

Balanced.

Front

What are the substances listed on the right side of a chemical equation called?

Back

Products.

Front

What is a chemical reaction?

Back

A process where reactants are transformed into products.

Front

What is the law of conservation of mass?

Back

Mass is neither created nor destroyed in a chemical reaction.

Front

What is a product in a chemical reaction?

Back

The substances formed as a result of a chemical reaction.

Front

What does it mean for a chemical equation to be balanced?

Back

It means the number of atoms for each element is the same on both sides of the equation.

Front

What is a coefficient in a chemical equation?

Back

A number placed in front of a compound to indicate how many molecules are involved.