AP Chemistry Unit 4 Review

Front

What are spectator ions?

Back

Spectator ions are ions that do not participate in the chemical reaction and remain unchanged.

Front

What is a base?

Back

A base is defined as a proton acceptor.

Front

What indicates a chemical change?

Back

The formation of a precipitate indicates a chemical change.

Front

What happens to magnesium in the reaction Mg → Mg²⁺ + 2e⁻?

Back

Magnesium loses 2 electrons.

Front

What is the oxidation number of manganese in KMnO₄?

Back

The oxidation number of manganese in KMnO₄ is +7.

Front

What is a chemical reaction?

Back

A chemical reaction is a process that leads to the transformation of one set of chemical substances to another.

Front

What is a precipitate?

Back

A precipitate is a solid that forms and settles out of a liquid mixture during a chemical reaction.

Front

What is an ion?

Back

An ion is an atom or molecule that has a net electric charge due to the loss or gain of one or more electrons.

Front

What is oxidation?

Back

Oxidation is the process of losing electrons during a reaction.

Front

What is reduction?

Back

Reduction is the process of gaining electrons during a reaction.