Ch. 7 Voacb

Question 1

Precipitation

Answer 1

the process of transforming a dissolved substance into an insoluble solid from a supersaturated solution

Question 2

Precipitate

Answer 2

The solid that is formed during precipitation

Question 3

Precipitation reaction

Answer 3

A reaction in which an insoluble substance forms and separates from the solution as a solid

Question 4

Strong electrolyte

Answer 4

A material that, when dissolved in water, gives a solution that conducts an electric current very efficiently

Question 5

Soluble solid

Answer 5

A solid that readily dissolves in water

Question 6

Insoluble solid

Answer 6

A solid where such a tiny amount of it dissolves in water that it is undetectable by the human eye

Question 7

Slightly soluble

Answer 7

A solid which has a low solubility

Question 8

Molecular equation

Answer 8

An equation representing a reaction in solution and showing the reactants and products in
undissociated form, whether they are strong or weak electrolytes

Question 9

Complete ionic equation

Answer 9

An equation that shows as ions all substances that are strong electrolytes

Question 10

Spectator ions

Answer 10

lons present in solution that do not participate directly in a reaction

Question 11

Net ionic equation

Answer 11

An equation for a reaction in solution, representing strong electrolytes as ions and showing only those components that are directly involved in the chemical change

Question 12

Acid

Answer 12

A chemical substance, usually a liquid, which contains hydrogen and can react with other substances to form salts

Question 13

Strong acid

Answer 13

An acid that completely dissociates (ionizes) to produce H+ ion and the conjugate base

Question 14

Base

Answer 14

A substance that can neutralize the acid by reacting with hydrogen ions

Question 15

Strong base

Answer 15

A metal hydroxide compound that completely dissociates into its ions in water

Question 16

Salt

Answer 16

lonic compounds

Question 17

Oxidation-reduction reaction

Answer 17

A reaction that involves the transfer of electrons between chemical species.

Question 18

Precipitation reaction

Answer 18

A reaction in which an insoluble substance forms and separates from the solution as a solid

Question 19

Double-displacement reaction

Answer 19

A reaction is which the positive and negative ions of two compounds exchange places.

Question 20

Acid-base reaction

Answer 20

A reaction in which an acid reacts with a base and the two neutralize each other, producing a salt and water.

Question 21

Combustion reaction

Answer 21

Vigorous and exothermic oxidation-reduction reactions that take place between certain substances (particularly organic compounds) and oxygen

Question 22

Synthesis (combination) reaction

Answer 22

A reaction in which two or more simple elements or compounds merge together to form a more complex compound.

Question 23

Decomposition reaction

Answer 23

A reaction in which a compound can be broken down into simpler compounds or all the way to the component elements by heating or by the application of an electric current