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WorksheetsGCSE Chemistry - Differences Between Compounds, Molecules & Mixt
Total questions: 10
Worksheet time: 5mins
What is a molecule?
A group of two or more atoms held together by chemical bonds
A mixture of different elements
A single atom
A compound with multiple chemical bonds
Which of the following is an example of a molecule?
Oxygen
Carbon dioxide
Sodium chloride
Water
What is a compound?
A mixture of different elements
A substance that contains two or more different elements with chemical bonds
A group of two or more atoms held together by chemical bonds
A single atom
Which of the following is an example of a compound?
Nitrogen
Oxygen
Sodium chloride
Helium
What is the formula for water?
O2
H2O
HO
H2
What is the formula for carbon dioxide?
CO
C2O
CO2
C2O2
What is the formula for sulfuric acid?
SO4
HSO4
H2SO4
H2S
Which type of bond forms large substances rather than molecules?
Ionic bond
Hydrogen bond
Metallic bond
Covalent bond
What is a mixture?
A single substance with chemical bonds
Two or more substances physically mixed together
A compound with multiple chemical bonds
Two or more substances chemically combined together
How can mixtures be easily separated?
Using chemical reactions
By adding more substances
Using physical methods like filtration, crystallization, or distillation
By heating to high temperatures
