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Grade 9 Class Test 1.1

Total questions: 13

Worksheet time: 39mins

Name
Class
Date
1.

The chemical name for KOH is...

a)

potassium oxide

b)
calcium hydroxide
c)
magnesium hydroxide
d)
potassium hydroxide
2.

The anion in the compound CaSO4 is called ... and has a charge of ...

a)

sulphate

-2

b)

sulfide

-2

c)

phosphate

-4

d)

sulfate

-1

3.

The name for the compound FeS is ...

(a)  

4.

What is the chemical name for NaOH?

a)

sodium oxide

b)

sodium hydroxide

c)

potassium hydroxide

d)

calcium hydroxide

5.

Which of the following is the chemical formula for magnesium sulfate?

a)

MgSO3

b)

MgSO4

c)

MgS

d)

Mg2SO4

6.

The compound CuCO3 is commonly called ...

(a)  

7.

Elements like Lithium and Sodium are found in the (a)   metal group.

8.

Chlorine - 35 and Chlorine - 37 are isotopes. The following is true for these isotopes ...

a)
They have the same mass number.
b)
They have the same number of protons but different number of neutrons.
c)
They have the same atomic number.
d)
They have the same number of protons and neutrons.
9.

What is the chemical formula for copper (I) sulfate?

a)

CuSO3

b)

CuSO4

c)

CuS

d)

Cu2SO4

10.

What is the common name for H2SO4?

a)

Sulfuric acid

b)

Hydrochloric acid

c)

Nitric acid

d)

Acetic acid

11.

The chemical formula for ammonium phosphide is ...

a)

(NH4)3P

b)

NP3H4

c)

NH4P2

d)

NH4P3

12.

Write down the chemical name for S3N2

a)
trisulfur dinitride
b)

sulfur dinitride

c)

trisulfur dinitrate

d)

sulfur nitrogen

13.

Write down the chemical name for PH3

(a)