Exam 3 Review

Question 1

Solubility Rules

Answer 1

Rule 1: “always” soluble:
Salts of Li+ group cations and NH4+, Salts of NO3−, C2H3O2−, and ClO4−
Rule 2: “usually” soluble:
Salts of halides, except when paired with Ag+, Cu+, Pb2+ or Hg22+ Salts of SO42−, except when paired with Ca2+, Sr2+, Ba2+, Ag+ or Pb2+
Rule 3: “always” insoluble:
Salts of OH−, CO32−, PO43−, S2−

Question 2

Which salts are always soluble

Answer 2

Salts of Li+ group cations and NH4+
Salts of NO3−, C2H3O2−, and ClO4−

Question 3

Which are usually soluble

Answer 3

Salts of halides, except when paired with Ag+, Cu+, Pb2+ or Hg22+
Salts of SO42− except when paired with Ca2+, Sr2+, Ba2+, Ag+ or Pb2+

Question 4

What are insoluble or slightly

Answer 4

Salts of OH−, CO32−, PO43−, S2−

Question 5

Strong Acids

Answer 5

Hydrochloric acid – HCl
Hydrobromic acid – HBr
Hydroiodic acid – HI
Nitric acid – HNO3
Chloric acid HClO3
Perchloric acid – HClO4
Sulfuric acid – H2SO4

Question 6

Hydrochloric acid

Answer 6

HCl

Question 7

Hydrobromic acid

Answer 7

HBr

Question 8

Hydroiodic acid

Answer 8

HI

Question 9

Nitric acid

Answer 9

HNO3

Question 10

Chloric acid

Answer 10

HClO3

Question 11

Perchloric acid

Answer 11

HClO4

Question 12

Sulfuric acid

Answer 12

H2SO4

Question 13

Strong Bases

Answer 13

Alkali metal hydroxides (LiOH, NaOH, KOH, RbOH, CsOH)
Alkaline earth hydroxides (Ba(OH)2, Sr(OH)2, Ca(OH)2)

Question 14

Alkali metal hydroxides

Answer 14

(LiOH, NaOH, KOH, RbOH, CsOH)

Question 15

Alkaline earth hydroxides

Answer 15

(Ba(OH)2, Sr(OH)2, Ca(OH)2)

Question 16

Polyatomic Ions

Answer 16

Acetate:C2H3O2−
Nitrate:NO3−
Carbonate:CO32−
Hydroxide: OH−
Hydrogen carbonate:HCO3−
Phosphate:PO43−
Cyanide:CN−
Sulfate:SO42−
Perchlorate:ClO4−
Hydrogen sulfate:HSO4−
Ammonium:NH4+
Peroxide:O22−

Question 17

Acetate

Answer 17

C2H3O2−

Question 18

Nitrate

Answer 18

NO3−

Question 19

Carbonate

Answer 19

CO32−

Question 20

Hydroxide

Answer 20

OH−

Question 21

Hydrogen carbonate

Answer 21

HCO3−

Question 22

Phosphate

Answer 22

PO43−

Question 23

Cyanide

Answer 23

CN−

Question 24

Sulfate

Answer 24

SO42−

Question 25

Perchlorate

Answer 25

ClO4−

Question 26

Hydrogen sulfate:

Answer 26

HSO4−

Question 27

Ammonium

Answer 27

NH4+

Question 28

Peroxide

Answer 28

O22−

Question 29

what is on the KE graphs of the gases based on

Answer 29

Atomic radius trend and the heaviest gasses are the slower which has the longest peak