Chapter 1 Test Vocab (fill in the blank)

The _______________ energy is the minimum amount of energy required for substances to react.

activation

A reaction is made faster by a(n) ______________.

catalyst

The law of ________________ of ____________ states that matter cannot be created or destroyed in ordinary chemical or physical changes.

conservation, mass/matter

In a(n) ____________________ reaction, a single compound breaks down to form two or more simpler compounds.

decomposition

In a(n) __________-displacement reaction, ions in two compounds switch places.

double

In _________________ reactions, energy is absorbed.

endothermic

A similar law, the law of conservation of ___________, states that energy cannot be created or destroyed.

energy

A chemical _____________ is a shorthand description of a chemical reaction.

equation

In _________________ reactions, energy is released.

exothermic

A chemical _______________ describes a substance using chemical symbols and numbers.

formula

A reaction is made slower by a(n) _______________.

inhibitor

A solid that is produced as a result of a chemical reaction in solution is a(n) _________________.

persipitate

In a chemical reaction, each new substance formed is a(n) _______________.

product

In a chemical reaction, each starting material is a(n) _______________.

reactant

A chemical _____________ is the process by which one or more substances undergo change to produce one or more new substances with different properties.

reaction

In a(n) _____________-displacement reaction, one element replaces another that is part of a compound.

single

In a(n) _______________ reaction two or more substances combine to form a single compound.

synthesis