Chapter 11

Question 1

Chemical equation

Answer 1

representing a chemical reaction;

Question 2

Catalyst

Answer 2

A substance that increases the rate of a reaction

Question 3

Balanced equation

Answer 3

each side has the same number of atoms of each element.

Question 4

Skeleton equation

Answer 4

doesn’t indicate the relative amounts of reactants and products

Question 5

Coefficient

Answer 5

A small number that appears in front of a formula

Question 6

Combination reaction

Answer 6

two or more substances react to form a single new substance; a

Question 7

Activity series

Answer 7

A list of elements in order of decreasing activity

Question 8

Double replacement reaction

Answer 8

involves an exchange of positive ions between two compounds

Question 9

Combustion reaction

Answer 9

element or compound reacts with oxygen that offer producing energy in the form of heat and light

Question 10

Decomposition reaction

Answer 10

single compound is broken down into two or more simpler parts

Question 11

Single replacement reaction

Answer 11

one element replaces a second element in a compound;

Question 12

Complete ionic equation

Answer 12

An equation that shows dissolved ionic compounds as dissociated free ions

Question 13

Net ionic equation

Answer 13

reaction in solution showing only particles that are directly involved in the chemical change

Question 14

Spectator ion

Answer 14

not directly involved in a chemical reaction; does not change oxidation number or composition during a reaction

Question 15

What does a net ionic equation show?

Answer 15

Only those particles directly involved in the chemical change

Question 16

How can you predict the formation of a precipitate in a double replacement reaction?

Answer 16

By using the general rules of solubility of ionic compounds

Question 17

What are the five general types of reactions?

Answer 17

Double replacement, single replacement, combustion, combination, and decomposition

Question 18

How do you write a skeleton equation?

Answer 18

Write the chemical formulas for the reactants to the left of the yield sign and the formulas to the right.

Question 19

What is the list of activity series?

Answer 19

Li, K, Ca, Na, Mg, Al, Zn, Fe, Pb, H, Cu, Hg, Ag

Question 20

Solubility rules for ionic compounds

Answer 20

Alkali metals and ammonia

Nitrate and chlorate salts

Sulfate salts - but not with Pb, Ag, Hg, Ba, Sr, and Ca

Chloride salts- but not with Ag, some Hg, and Pb

Question 21

Not soluble:

Answer 21

Carbonates, phosphates, chromates, sulfides, and hydroxides

Question 22

Probable products of a combustion reaction

Answer 22

CO2 and H2O