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WorksheetsChemical formulae
Total questions: 15
Worksheet time: 8mins
What does the subscript in a chemical formula tell you?
how many molecules are present
how many elements are present
how many atoms are present
how many neutrons are present
How many elements are in this chemical formula? H2SO4
1
2
3
4
How many atoms of carbon are in this formula? C6H12O6
1
6
12
What elements are represented in this chemical formula? Fe2O3
Iron, oxygen
Ferrium, oxygen
Francium, europium, oxygen
Beryilium, oxygen
What is the total number of atoms in this formula? H2O2
2
3
4
6
How many more atoms of oxygen than magnesium are in this formula? MgSO4
2
3
4
6
Which of the following elements is least likely to form a compound?
Hydrogen
Argon
Sodium
Potassium
Which of the follwoing is a molecule of a compound?
H2
H2O
Cl2
F2
Which one is the odd one out?
sodium
carbon
glucose
gold
Is this an element or a compound? CaSO4
Element
Compound
Which chemical formula correctly displays 1 atom of nickle and 2 atoms of fluorine?
niF2
Ni1F2
NIF2
NiF2
What is the total number of atoms in this chemical formula? C8H3NaBr12
12
18
24
25
Which element has the greatest number of atoms? AgNO3
Silver
Nitrogen
Gold
Oxygen
Molecules that are made up of more than one type of atom are called
molecules
mixtures
elements
compounds
How many elements are in this chemical formula? NaHCO3
3
4
5
6
