Ch 19 Chemical Reactions

A change in which one or more substances are converted into a new substance is called a ______ reaction.

• chemical
• inhibitor
• catalyst

Tags

NGSS.MS-PS1-5

NGSS.MS-PS1-2

The loss of electrons from the atoms of a substance in a chemical reaction is ______.

• oxidation
• reduction

Tags

NGSS.HS-PS1-2

If a precipitate, water, or gas forms when two ionic compounds in a solution are combined the reaction is a(n) ________ reaction.

• double-displacement
• synthesis
• single-displacement
• decomposition

A substance that prevents/slows certain chemical reactions is a(n) __________.

• catalyst
• inhibitor
• precipitate

When two or more simple substances combine in a chemical reaction to form another more complex substance, a(n) ________ reaction has taken place.

• double-displacement
• synthesis
• decomposition
• single-displacement

Tags

NGSS.MS-PS1-1

The breakdown of a substance into two or more simpler substances is a(n) ________ reaction.

• double-displacement
• decomposition
• synthesis
• single-displacement

In a chemical equation, the substances that react are called _________.

• products
• reduction
• reactants

______ is the gaining of e- by the atoms of a substance in a chemical reaction.

• reduction
• oxidation

Tags

NGSS.HS-PS1-2

A substance that speeds up a chemical reaction without itself being permanently changed is a(n) _______.

• inhibitor
• catalyst

Tags

NGSS.HS-PS1-5

A reaction that requires (absorbs) energy in the form of heat is a(n) __________ reaction.

• exothermic
• endothermic

Tags

NGSS.HS-PS1-4