Chapter 8

Question 0

What is the small whole number that belongs to an element in a chemical formula

Answer 0

Subscript

Question 1

A solid produced by a chemical reaction in solution that separates from the solution

Answer 1

Precipitate

Question 2

To balance a chemical equation, it may be necessary to adjust the

Answer 2

Coefficients

Question 3

In an equation, the symbol for a substance in water solution is followed by

Answer 3

(Aq)

Question 4

The equation AX->A+X is the general equation for a

Answer 4

Decomposition

Question 5

The equation AX+BY->AY+BX is the general equation for

Answer 5

Double replacement reaction

Question 6

The equation A+X->AX is the general equation for

Answer 6

Single replacement reaction

Question 7

2Mg+O2->2MgO is a..

Answer 7

Synthesis reaction

Question 8

The reactions Mg+2HCl->H2+MgCl2 is a

Answer 8

Single replacement reaction

Question 9

Pb(NO3)2+2KI->PbI2+2KNO3

Answer 9

Double replacement reaction

Question 10

The reaction CH4+2O2->2H2O+CO2 is a..

Answer 10

Combustion reaction

Question 11

Oxides of active metals such as CaO react with water to produce

Answer 11

Metal hydroxides

Question 12

Some acids, such as carbonic acid, decompose to nonmetal oxides and….

Answer 12

Water

Question 13

When potassium reacts with water (HOH) one product formed is

Answer 13

Hydrogen gas

Question 14

The reaction of calcium oxide (CaO) with water yields

Answer 14

Calcium hydroxide

Question 15

Predict the product of this: MgO+CO2

Answer 15

MgCO3

Question 16

The formulas for the products of the reaction between sodium hydroxide and sulfuric acid are

Answer 16

Na2SO4 and H2O

Question 17

What is the balanced equation when aluminum reacts with copper(II)sulfate

Answer 17

2Al+3CuSO4->Al2(SO4)3+3Cu

Question 18

An element in the activity series can replace any element

Answer 18

Below it on the list

Question 19

Predict what happens when lead is added to nitric acid

Answer 19

H2 gas is formed

Question 20

Magnesium bromide + chlorine yield

Answer 20

Mg(Cl)2 and Br2

Question 21

Always has carbon dioxide and water as products

Answer 21

Combustion

Question 22

When is there a no reaction in double replacement

Answer 22

When both products are (aq)

Question 23

How much is sulfur by itself

Answer 23

S8

Question 24

How much is phosphorus by itself

Answer 24

P4

Question 25

Equations that describe the chemicals put into the water and the product molecules

Answer 25

Molecular equations

Question 26

Equations that describe the actual ions and molecules in the solutions as well as the molecules of solid, liquid, and gas not dissolved

Answer 26

Ionic equation

Question 27

Ions that are both in reactants and products

Answer 27

Spectator ions

Question 28

An ionic equation in which the spectator ions are dropped ; what is left over

Answer 28

Net ionic equation

Question 29

One product

Answer 29

Synthesis

Question 30

Two products

Answer 30

Decomposition

Question 31

Alkanes

Answer 31

CnH2n+2

Question 32

Alkenes

Answer 32

CnH2n

Question 33

Alkynes

Answer 33

CnH2n-2

Question 34

1

Answer 34

Meth

Question 35

2

Answer 35

Eth

Question 36

3

Answer 36

Prop

Question 37

4

Answer 37

But

Question 38

5

Answer 38

Pent

Question 39

6

Answer 39

Hex

Question 40

7

Answer 40

Hept

Question 41

8

Answer 41

Oct

Question 42

9

Answer 42

Non

Question 43

10

Answer 43

Dec

Question 44

Regular equations for combustion

Answer 44

Gasoline + oxygen-> carbon dioxide + water

Question 45

Decane becomes what

Answer 45

C10H22