Polyatomic Ions

Question 1

NH4

Answer 1

Ammonium ion. 1+

Question 2

CH3COO

Answer 2

Acetate ion. 1-

Question 3

CO3

Answer 3

Carbonate ion. 2-

Question 4

HCO3

Answer 4

Hydrogen carbonate ion / bicarbonate ion. 1-

Question 5

ClO

Answer 5

Hypochlorite ion. 1-

Question 6

ClO2

Answer 6

Chlorite ion. 1-

Question 7

ClO3

Answer 7

Chlorate ion. 1-

Question 8

ClO4

Answer 8

Perchlorate ion. 1-

Question 9

CrO4

Answer 9

Chromate ion. 2-

Question 10

Cr2O7

Answer 10

Dichromate ion. 2-

Question 11

CN

Answer 11

Cyanide ion. 1-

Question 12

OH

Answer 12

Hydroxide ion. 1-

Question 13

NO2

Answer 13

Nitrite ion. 1-

Question 14

NO3

Answer 14

Nitrate ion. 1-

Question 15

C2O4

Answer 15

Oxalate ion. 2-

Question 16

MnO4

Answer 16

Permanganate ion. 1-

Question 17

PO4

Answer 17

Phosphate ion. 3-

Question 18

HPO4

Answer 18

Hydrogen phosphate ion. 2-

Question 19

H2PO4

Answer 19

Dihydrogen phosphate ion. 1-

Question 20

SO3

Answer 20

Sulfite ion. 2-

Question 21

HSO3

Answer 21

Hydrogen sulfite ion / bisulfite ion. 1-

Question 22

SO4

Answer 22

Sulfate ion. 2-

Question 23

HSO4

Answer 23

Hydrogen sulfate ion / bisulfate ion. 1-

Question 24

S2O3

Answer 24

Thiosulfate ion. 2-

Question 25

Strong Acids

Answer 25

HCl, HBr, HI, HClO4, HNO3, H2SO4

Question 26

Strong Bases

Answer 26

Group 1 and 2 Hydroxides, Group 1 and 2 Oxides, Group 1 and 2 Hydrides.

Question 27

Exceptions to Octet Rule

Answer 27

Group 13 Elements (Boron and Aluminum) only need 6 electrons to be full. Beryllium only needs 4 electrons to be full.