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WorksheetsGrade 10 - Foundation of Chemistry
Total questions: 15
Worksheet time: 8mins
Some students are asked to describe differences between gases and liquids. Three of their suggestions are as follows. Which suggestions are correct?
1 only
2 only
3 only
1, 2, 3
In the diagrams, circles of different sizes represent atoms of different elements. Which diagram can represent hydrogen chloride gas (HCl)?
Which pair of substances are both mixtures?
air; water
limewater; water
sea-water; air
sea-water; ethanol
Which one of the following is a state of matter?
Liquid
Particle
Air
Creatures
Which one of the following is not a property of gases?
They have no definite shape
They have a definite volume
They have a definite mass
They can move easily
When water vaporizes at room temperature, it changes into......
Water vapor
Fog
Steam
Ice
An example of a substance that freeze from liquid state is...
Dry ice
Fog
Steam
Ice cube
Which one of the following is not a property ofsolids?
Definite volume
They do not flow
No Definite Shape
They are incompressible
Which one of the following substances is able to vaporize at room temp?
Ethanol
Water
Mercury
Gold bar
All solids, liquids and gases are made up of
Particles
Volume
Colours
Temperature
Which branch of chemistry is MOST LIKELY to study carbon containing substances?
Organic Chemistry
Inorganic Chemistry
Biochemistry
Physical Chemistry
Analytical Chemistry
Which branch of chemistry is MOST LIKELY to study energy changes in a reaction?
Organic Chemistry
Inorganic Chemistry
Biochemistry
Physical Chemistry
Analytical Chemistry
Which of the following BEST defines Chemistry?
The study of matter and the changes it undergoes.
The study of energy and the ways it can be transformed.
The study of living things and how they interact.
The study of rocks/minerals and how they are formed.
Which of the following is done if a hypothesis is rejected in an experiment?
A theory is made
Variables are changed
A new hypothesis is made
The scientific concept is changed
The boiling point of carbon tetrachloride, CCl4 is 76.0 OC.
Which of the following statement is true about the molecules of carbon tetrachloride at 80.0 OC?
The carbon tetrachloride molecules becomes lighter
The distance between the carbon tetrachloride molecules decrease
The kinetic energy of the carbon tetrachloride molecules becomes lower
The forces of attraction between the carbon tetrachloride molecules becomes weaker
