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Worksheets

Polyatomic Ions (chemical formulas)

Total questions: 24

Worksheet time: 36mins

Name
Class
Date
1.

what is the CHEMICAL FORMULA and CHARGE for ammonium?

a)

NH4 (+1)

b)

NH4

2.

What is the CHEMICAL FORMULA and CHARGE for hypochlorate?

a)

ClO

b)

ClO (-1)

3.

what is the CHEMICAL FORULA and CHARGE for chlorite?

a)

ClO2 (+1)

b)

ClO2 (-1)

4.

what is the CHEMICAL FORULA and CHARGE for chlorate?

a)

ClO3 (-1)

b)

ClO2 (-1)

5.

what is the CHEMICAL FORULA and CHARGE for perchlorate?

a)

ClO4 (-2)

b)

ClO4 (-1)

6.

what is the CHEMICAL FORULA and CHARGE for carbonate?

a)

CO3 (-1)

b)

CO3 (-2)

7.

what is the CHEMICAL FORULA and CHARGE for bicarbonate

a)

HCO3 (-2)

b)

HCO3 (-1)

8.

what is the CHEMICAL FORMULA and CHARGE for nitrite

a)

NO2 (-1)

b)

NO2 (-2)

9.

what is the CHEMICAL FORMULA and CHARGE for nitrate?

a)

NO3 (-2)

b)

NO3 (-1)

10.

what is the CHEMICAL FORMULA and CHARGE for bisulfide?

a)

HS (-2)

b)

HS (-1)

11.

what is the CHEMICAL FORMULA and CHARGE for sulfite?

a)

SO3 (-1)

b)

SO3 (-2)

12.

what is the CHEMICAL FORMULA and CHARGE for sulfate?

a)

SO4 (-1)

b)

SO4 (-2)

13.

what is the CHEMICAL FORMULA and CHARGE for bisulfite?

a)

HSO3 (-1)

b)

HSO3 (-2)

14.

what is the CHEMICAL FORMULA and CHARGE for bisulfate?

a)

HSO4 (-2)

b)

HSO4 (-1)

15.

what is the CHEMICAL FORMULA and CHARGE for phosphate?

a)

PO4 (-3)

b)

PO4 (+3)

16.

what is the CHEMICAL FORMULA and CHARGE for pemanganate?

a)

MnO4 (-1)

b)

MnO4 (+1)

17.

what is the CHEMICAL FORMULA and CHARGE for oxalate?

a)

C2O4 (-1)

b)

C2O4 (-2)

18.

what is the CHEMICAL FORMULA and CHARGE for hydroxide?

a)

OH (-1)

b)

HO (-1)

19.

what is the CHEMICAL FORMULA and CHARGE for chromate?

a)

CrO4 (-1)

b)

CrO4 (-2)

20.

what is the CHEMICAL FORMULA and CHARGE for dichromate?

a)

Cr2O7 (-1)

b)

Cr2O7 (-2)

21.

what is the CHEMICAL FORMULA and CHARGE for bromite?

a)

BrO2 (-1)

b)

BrO2 (-2)

22.

what is the CHEMICAL FORMULA and CHARGE for bromate?

a)

BrO3 (-1)

b)

BrO3 (+1)

23.

what is the CHEMICAL FORMULA and CHARGE for acetate?

**select two possible answers**

a)

CH3COO (-2)

b)

CH3COO (-1)

c)

C2H3O2 (-2)

d)

C2H3O2 (-1)

24.

what is the CHEMICAL FORMULA and CHARGE for cyanide?

a)

CN (-2)

b)

CN (-1)