Test 3: Acid-base and Precipitation Reactions

Question 1

Acid-Base and Precipitation reactions are both a subset of what is often classified as

Answer 1

double-replacement reactions.

Question 2

Acid-Base and Precipitation reactions occur in what solution

Answer 2

aqueous (water based) solution

Question 3

Acid-Base and Precipitation reactions typically follow what format?

Answer 3

AB + CD -> AD + CB

Question 4

Double replacement reactions occur when two ionic
compounds

Answer 4

switch the ions they are paired with (cations listed first and anions second)

Question 5

Whenever you see an ionic compound written as (aq)

Answer 5

the compound is dissolved in water

Question 6

The reason that soluble ionic compounds dissociate when they dissolve in water is because

Answer 6

the partially charged ends of the polar water molecules attract the fully charged ions

Question 7

Precipitation reactions occur
when two aqueous ionic solutions are combined and form

Answer 7

one or more insoluble ionic
compounds

Question 8

To correctly predict precipitation reactions you need to

Answer 8

memorize the table of general
solubility rules

Question 9

General rules of solubility assume that every other ion is generally

Answer 9

insoluble

Question 10

General rules of solubility indicate that any compound containing two ions not listed as soluble tells us that it is

Answer 10

not soluble.

Question 11

a precipitate reaction is indicated by

Answer 11

two aqueous solutions make and aqueous with a solid
(aq)+(aq) -> (aq)+(s)

Question 12

Spectator ions

Answer 12

are not involved in the reaction at all and remain the same in the reactant and product

Question 13

Net ionic equation

Answer 13

What is left when spectator ions are removed from the equation and all that remains is the precipitate

Question 14

Acid-Base reactions occur when

Answer 14

H+ ions in solution and OH- ions in solution combine to make liquid water as a product.

Question 15

The ionic compound which contributes the H+ ion to
solution is the

Answer 15

acid

Question 16

The ionic compound which contributes the OH- ion to the solution is the

Answer 16

base

Question 17

when you combine acids with bases you get

Answer 17

water (neutralized liquid)

Question 18

When an acid/base combine to form a water, a neutral ionic compound is formed and is called

Answer 18

“salt” even if it is not NaCl

Question 19

What are the four solubility groups?

Answer 19

Group 1 ions, polyatomic ions, halides, sulfates.

Question 20

Soluble group 1 ions include

Answer 20

All group 1 ions (H,Na,Li,K,Rb,Cs,Fr)

Question 21

Soluble polyatomic ions include

Answer 21

ammonium (NH4+), nitrate (NO3-), acetate (CH3CO2-) and perchlorate (CLO4-)

Question 22

Soluble Halides

Answer 22

Cl,Br,I

Question 23

Halides solubility exceptions

Answer 23

Ag,Hg,Pb

Question 24

Soluble sulfates

Answer 24

Sulfate (SO4 2-)

Question 25

Sulfates solubility exceptions

Answer 25

Sr,Ba,Hg,Pb