Chemical Reactions Practice Flashcard

Front

In a balanced chemical equation, the mass of the reactant is equal to the

Back

mass of the products.

Front

According to the LAW of Conservation of Mass, if two atoms of hydrogen are used as a reactant, how many atoms of hydrogen must be in the product?

Back

Two.

Front

The substance(s) on the right side of the arrow in a chemical equation is called the

Back

product.

Front

A chemical equation is balanced when the

Back

same number of each kind of atom appears in the reactants and in the products.

Front

What happens in a chemical reaction?

Back

Atoms are rearranged.

Front

What is a reactant?

Back

A substance that undergoes change during a chemical reaction.

Front

What is a product?

Back

A substance that is formed as a result of a chemical reaction.

Front

Define the Law of Conservation of Mass.

Back

Mass is neither created nor destroyed in a chemical reaction.

Front

What is a coefficient in a chemical equation?

Back

A number placed in front of a chemical formula to indicate the number of molecules.

Front

What is a chemical equation?

Back

A symbolic representation of a chemical reaction.