Exam 3 Review

Question 1

Li+, Na+, K+, NH4+

Answer 1

always soluble

Question 2

NO2-, C2H3O2-

Answer 2

always soluble

Question 3

Cl-, Br-, I-

Answer 3

soluble except with Ag+, Hg2(2+), Pb2+

Question 4

SO4(2-)

Answer 4

soluble except with Sr2+, Ba2+, Pb2+, Ag+, Ca2+

Question 5

OH- and S2-

Answer 5

insoluble except with things that are always soluble and Ca2+, Sr2+, Ba2+

Question 6

CO3(2-), PO4(3-)

Answer 6

insoluble except when paired with compounds that are always soluble

Question 7

acetate

Answer 7

C2H3O2(-)

Question 8

carbonate

Answer 8

CO3(2-)

Question 9

hydrogen carbonate

Answer 9

HCO3(-)

Question 10

hydroxide

Answer 10

OH(-)

Question 11

Nitrite

Answer 11

NO2(-)

Question 12

Nitrate

Answer 12

NO3(-)

Question 13

Chromate

Answer 13

CrO4(2-)

Question 14

Dichromate

Answer 14

Cr2O7(2-)

Question 15

phosphate

Answer 15

PO4(3-)

Question 16

Hydrogen phosphate

Answer 16

HPO4(2-)

Question 17

dihydrogen phosphate

Answer 17

H2PO4(-)

Question 18

ammonium

Answer 18

NH4(+)

Question 19

hypochlorite

Answer 19

ClO(-)

Question 20

chlorite

Answer 20

ClO2(-)

Question 21

chlorate

Answer 21

ClO3(-)

Question 22

perchlorate

Answer 22

ClO4(-)

Question 23

permanganate

Answer 23

MnO4(-)

Question 24

Sulfite

Answer 24

SO3(2-)

Question 25

hydrogen sulfite

Answer 25

HSO3(-)

Question 26

sulfate

Answer 26

SO4(2-)

Question 27

hydrogen sulfate

Answer 27

HSO4(-)

Question 28

cyanide

Answer 28

CN(-)

Question 29

peroxide

Answer 29

O2(2-)

Question 30

naming ionic compounds

Answer 30

name of cation + base name of anion and -ide; if cation can form multiple charge add that

Question 31

naming binary acid

Answer 31

hydro + base name of nonmetal + -ic + acid

Question 32

naming oxyacids with -ate oxyanion

Answer 32

base name of oxyanion + -ic + acid

Question 33

naming oxyacids with -ite oxyanion

Answer 33

base name of oxyanion + -ous + acid

Question 34

weak acids

Answer 34

acetic acid, hydrofluoric acid

Question 35

weak base

Answer 35

ammonia

Question 36

combustion reactions

Answer 36

substance + oxygen; carbon forms co2, hydrogen form h2o

Question 37

alkali metals (M) and haogens (X)

Answer 37

2M + X2 = 2MX

Question 38

halogens

Answer 38

react to form metal halides; 2 M + nX2 = 2MXn

Question 39

dilution

Answer 39

M1V1 = M2V2 (number of mols stays the same)

Question 40

acid base rxn

Answer 40

forms water, salt (if C is present, then CO2 as well)

Question 41

redox reaction

Answer 41

electrons transfer from one reactant to another; any reaction with change in oxidation states from reactant to products

Question 42

rules for oxidation states

Answer 42

1. ox state of atom in free element is 0
2. ox state of monoatomic ion is = to charge
3. sum of ox of all atoms is = to 0 in neutral atom, or ionic charge
4. 1A = +1, 2A = +2 always
5. nonmetals assigned: F, H, O, 7A, 6A, 5A

Question 43

Oxidation

Answer 43

loss of electrons

Question 44

reduction

Answer 44

gain of electrons

Question 45

oxidizing agent

Answer 45

is reduced

Question 46

reducing agent

Answer 46

is oxidized