WorksheetsCompounds
Total questions: 17
Worksheet time: 10mins
Which statements correctly describe a compound?
It is a pure substance.
It is an impure substance.
It is made up of only one element.
It is made up of two or more elements.
The elements in a compound are chemically combined in a fixed ratio.
Carbon dioxide is a compound.
How many elements are present in this compound?
One
Two
Three
Hydrogen nitrate is a compound.
How many elements are present in this compound?
1
2
3
4
5
Sodium oxide is a compound.
What elements are present in this compound?
sodium and oxide
sodium and oxygen
Silicon dioxide is a compound.
What elements are present in this compound?
silicon and dioxide
silicon and oxide
silicon and oxygen
Sodium chloride is a compound.
What elements are present in this compound?
sodium and chloride
sodium and chlorine
Ammonia is a compound. What elements are present in this compound?
nitrogen and hydrogen
niobium and hydrogen
nickel and hydrogen
nobelium and hydrogen
Calcium carbonate is a compound. What elements are present in this compound?
calcium and carbonate
calcium and carbon
calcium, carbon and oxygen
Sodium hydrogencarbonate is a compound. What elements are present in this compound?
sodium and hydrogencarbonate
sodium, hydrogen and carbonate
sodium, hydrogen and carbon
sodium, hydrogen, carbon and oxygen
Copper(II) sulfate is a compound. What elements are present in this compound?
copper(II) and sulfate
copper and sulfate
copper and sulfur
copper, sulfur and oxygen
The picture shows the chemical formula of a compound. What elements are present in this compound?
hydrogen
polonium
potassium
oxygen
phosphorus
The picture shows the chemical formula of a compound. What elements present in this compound are non-metals?
hydrogen
potassium
oxygen
phosphorus
Which compounds are made up of only non-metals?
sodium chloride
silicon dioxide
ammonia
water
calcium carbonate
Which compounds are made up of metals and non-metals?
lithium fluoride
silicon dioxide
ammonia
carbon dioxide
copper(II) sulfate
Which statements correctly describe the properties of compounds?
Compounds have the same properties as their constituent elements.
Compounds do not have the same properties as their constituent elements.
The constituent elements of a compound are always chemically combined in a fixed ratio.
Compounds cannot be broken down into their constituent elements.
Compounds can be decomposed into their constituent elements by chemical methods using heat and electricity.
Water is a compound made up of two elements, hydrogen and oxygen, which are chemically combined in a fixed ratio. What is the ratio between hydrogen and oxygen in water?
3:0
2:1
1:2
Carbon dioxide is a compound.
How many elements are present in this compound?
One
Two
Three
