Chemical Reactions Chapter 7 Vocabulary quiz

A reaction in which two or more substances combine to form a new compound.

• double displacement

• synthesis

• single displacement

• exothermic

An atom or a group of atoms that has one unpaired electron.

• free radical

• double displacement

• single displacement

• reactant

A reaction in which one element or radical takes the place of another element or radical in a compound.

• free radical

• single displacement

• double displacement

• reactant

The oxidation reaction of an organic compound, in which heat is released.

• single displacement

• double displacement

• combustion reaction

• catalyst

A substance that forms in a chemical reaction.

• catalyst

• enzyme

• reactant

• product

A substance or molecule that participates in a chemical reaction.

• product

• reactant

• catalyst

• enzyme

A chemical reaction that requires energy input.

• double displacement

• single displacement

• exothermic

• endothermic

The energy released when a chemical compound reacts to produce new compounds.

• chemical energy

• chemical equation

• mole ratio

• decomposition reaction

A reaction in which a gas, solid precipitate, or a molecular compound forms from the apparent exchange of atoms or ions between two compounds.

• single displacement

• decomposition

• double displacement

• synthesis reaciton

A substance that changes the rate of a chemical reaction without being consumed or changed significantly.

• reactant

• product

• combustion reaction

• catalyst