NEW
Font size
Worksheetschemical formula
Total questions: 20
Worksheet time: 10mins
What is the chemical formula of Magnesium chloride?
MgCl
MgCl2
MgC
MgC2
What is the chemical formula of sodium sulfate?
SSO4
SoSO4
NaSO4
Na2SO4
What is the name of this chemical, H2SO4?
Hydrogen sulfate
Sulfuric acid
Sulfate
Sulfate hydrogen
What is the formula of Copper (II) oxide?
CUO
CuO
CuO2
Cu2O
What is the formula of nitric acid?
H2SO4
HNO3
HCl
hno3
Which of the following compound is not an acid?
HCl
H2SO4
HNO3
CH4
What is the name of ion that is present in all acids?
hydrogen ion
hydroxide ion
nitrate ion
sulfate ion
The formula of iron(III) oxide is
FeO
FeO2
Fe2O
Fe2O3
The formula of sodium carbonate is
NaCO3
Na(CO3)2
Na2CO3
The formula of calcium hydroxide is
CaOH
Ca(OH)2
Ca(OH)3
How many atoms of sulfur are in each molecule of H2SO4?
1
4
2
7
Which elements are in the formula shown above?
Tin and Chlorine
Tin, Carbon and Lithium
Sulfur, Nitrogen and Chlorine
Sulfur, Nitrogen, Carbon and Lithium
How many electrons are there in the valence shell of the O2– ion?
2
8
10
6
What is the formula of the compound formed between magnesium and oxygen?
MgO
Mg2O2
MgO2
Mg2O
A molecule of a compound is electrically _______________.
positive
negative
either a) or b)
neutral
The molecular formula of the compound aluminium sulphate is
Al(SO4)3
Al2S3
Al2(SO3)3
Al2(SO4)3
When an element exists as a molecule, each unit consists of two or more ____________.
ions
radicals
atoms
valency
The symbol of ammonium radical is ______.
CO32-
SO42-
NH4+
NO3-
The electronic configuration of chlorine is
2,7
2,8,8,7
2,8,7
2,7,8
Nitrogen (N2) is an example of __________.
monoatomic molecules
diatomic molecules
triatomic molecules
polyatomic molecules
