Key Terms Chapter 5 - Classifying Chemical Reactions

Question 1

Synthesis reaction

Answer 1

A chemical reaction in which two or more reactants combine to produce a new product

Question 2

Decomposition reaction

Answer 2

A chemical reaction in which a chemical compound breaks down (decomposes) into two or more simpler compounds or elements

Question 3

Single displacement reaction

Answer 3

A chemical reaction in which one element takes the place of another element in a compound

Question 4

Activity series

Answer 4

A list of elements organized according to their chemical reactivity; the most reactive element appears at the top and the least reactive element appears at the bottom

Question 5

Double displacement reaction

Answer 5

A chemical reaction in which the positive ions (cations) of two different compounds exchange places, resulting in the formation of two new compounds - one of which may be a precipitate

Question 6

Catalyst

Answer 6

A substance that increases the rate of a reaction and is regenerated at the end of the reaction

Question 7

Leaching

Answer 7

A technique used to extract a metal by dissolving the metal in an aqueous solution

Question 8

Precipitate

Answer 8

An insoluble solid formed in a chemical reaction