Polyatomic ion names

Question 1

Ammonium

Answer 1

NH4+

Question 2

Nitrate

Answer 2

NO3-

Question 3

Hydroxide

Answer 3

OH-

Question 4

Carbonate

Answer 4

(CO3)2-

Question 5

Sulfate

Answer 5

(SO4)2-

Question 6

Sulfite

Answer 6

(SO3)2-

Question 7

Soluble in water

Answer 7

1) Sodium, potassium and ammonium salts
2) All nitrates
3) Most chlorides
4) Most sulfates
5) sodium, potassium and ammonium carbonates
6) sodium, potassium and ammonium hydroxides

Question 8

Insoluble in water

Answer 8

1) silver, lead chlorides
2) lead, barium, calcium sulfates
3) most carbonates
4) most hydroxides