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WorksheetsG8 Science Review Quiz
Total questions: 15
Worksheet time: 9mins
The table shows properties of four substances, A, B, C and D.
Which substance is a gas at 600 °C?
A
B
C
D
The table shows properties of four substances, A, B, C and D.
Which substance could be a metal?
A
B
C
D
Which method can be used to separate an insoluble solid from a liquid?
crystallisation
evaporation
filtration
simple distillation
Give the name of a method used to separate a mixture of liquids with different boiling points.
(a)
A student adds a crystal of substance X to some water in a beaker and leaves the beaker for one day. The diagram shows the beaker immediately after adding the crystal, and after one day.
Which equation gives the correct state symbols for a process that occurs in the beaker?
X(s) → X(l)
X(s) → X(g)
X(aq) → X(s)
X(s) → X(aq)
A student adds a crystal of substance X to some water in a beaker and leaves the beaker for one day. The diagram shows the beaker immediately after adding the crystal, and after one day.
Which other process occurs in the beaker?
boiling
condensing
diffusion
sublimation
Which of these is the formula of a molecule of an element?
O
Cl2
HCl
H2O
A representation of an atom is shown.
What is the mass number (nucleon number) of this atom?
6
7
12
13
Four physical changes of ethanol are listed.
1 condensation
2 evaporation
3 freezing
4 boiling
In which changes do the particles move further apart?
1 and 2
1 and 3
2 and 4
3 and 4
An atom of element X contains: ● 5 protons ● 6 neutrons ● 5 electrons.
Which statements about element X are correct?
1 X has an atomic number of 6.
2 X has a nucleon number of 11.
3 X is in Group II of the Periodic Table.
4 X is in the second period of the Periodic Table.
1 and 3
1 and 4
2 and 3
2 and 4
Which statement about paper chromatography is correct?
A solvent is needed to dissolve the paper.
Paper chromatography separates mixtures of solvents.
The solvent should cover the baseline.
The baseline should be drawn in pencil.
A chromatogram of a single substance T is shown.
Which measurements are used to find the Rf value of T?
1 and 2
1 and 4
2 and 3
3 and 4
The numbers of protons and neutrons and the electronic structures of four particles, W, X, Y and Z, are shown.
Which particles have the same chemical properties?
W and Y
W and Z
X and Y
X and Z
Iodine changes directly from a grey solid to a purple gas when it is heated.
What is the name of this process?
condensation
evaporation
sublimation
deposition
The noble gases are placed in Group VIII of the Periodic Table.
Which statement explains why they are unreactive?
They have eight electrons in their outer shell.
They have a full outer shell of electrons.
They have even numbers of neutrons.
They have even numbers of protons.
