NEW
Font size
WorksheetsElements, Compounds & Mixtures
Total questions: 15
Worksheet time: 5mins
What is the definition of an element?
A pure substance that cannot be broken down into any simpler substances by chemical methods.
A substance made up of two or more elements chemically joined together.
Two or more substances which are not joined together chemically.
A substance that dissolves in a solvent.
Which of the following is an element?
Oxygen
Carbon Dioxide
Water
Salt
Identify the correct chemical symbol for the element Iron
FE
Fe
Ir
I
Identify the correct chemical symbol of Barium.
Ba
B
ba
Na
What is the name of the element Cl?
Carbon
Chlorine
Calcium
Cadmium
Which is the following is a compound?
Nitrogen
Carbon dioxide
Aluminium
Sodium
A compound has different physical properties to the elements that it is formed from.
True
False
The different elements in a compound are joined together in fixed proportion by mass.
True
False
A compound can be separated into smaller substances using physical methods.
True
False
Which of the following is NOT a difference between a solution and a suspension?
A solution is clear, while a suspension is cloudy.
When left to stand for a while, a solution has particles settling to the bottom, while a suspension does not.
A solution cannot be separated by physical methods, while a suspension cannot be separated by using a filtration method.
Solid particles dissolve completely in a solution, while solid particles do not dissolve at all in a suspension.
Which of the following is NOT a suspension?
Orange Juice
Milk
Salt Solution
Tea
Which of the following is a factor for the solubility of a solid?
Size of Solute
Temperature
Size of Beaker
Rate of Stirring
Which of the following elements makes up the compound sodium chloride?
Nitrogen
Oxygen
Iron
Chlorine
Which of the following is NOT a factor for the rate of dissolving?
Temperature
Rate of Stirring
Surface Area of Solid
Colour of Solid
What is NOT a method to speed up the dissolving of sugar solution?
Stir faster with a spoon
Heat up the sugar solution
Add in bigger pieces of sugar
Add in smaller pieces of sugar
