WorksheetsYear 8 Mid-term 8G Metals and their uses
Total questions: 28
Worksheet time: 37mins
Which of the following is not a property of most metals?
solid
brittle
strong
malleable
Which of the following statements is true?
Copper is used as a roof covering because it conducts heat well.
Copper is used as a roof covering because it changes to a green colour.
Copper is used as a roof covering because it is malleable.
Copper is used as a roof covering because it is a good conductor of electricity.
Which of the following best describes a catalyst?
A catalyst is a reactant in a chemical reaction.
A catalyst is produced in a chemical reaction.
A catalyst speeds up a chemical reaction.
A catalyst causes a different product to be made in a chemical reaction.
The product formed when calcium reacts with fluorine is …
calcium fluoride
fluorine calcide
calcium chlorine
calcium fluorate
A copper coin is shiny when it is new, but will eventually go black and dull. The two words which best describe this process are:
neutralisation and rusting.
rusting and corrosion.
corrosion and oxidation.
oxidation and neutralisation.
When scratched to remove its surface, which of the following metals will react most quickly with the air?
aluminium
copper
lead
tin
What must be present for iron to rust?
water alone
oxygen alone
air alone
water and oxygen
Painting stops iron rusting because the paint:
is a catalyst for rusting.
keeps out air and water.
reacts with the air instead of iron.
dries up any moisture in the environment.
Which of the following metals is so reactive it is stored under oil?
aluminium
copper
magnesium
sodium
Complete the word equation: Calcium + Water
calcium + water (
calcium oxide + oxygen
calcium sulfate + hydrogen
calcium + oxygen
calcium hydroxide + hydrogen
The test for hydrogen gas is that it:
relights a glowing splint.
turns limewater milky.
burns with a squeaky pop.
turns pH indicator purple.
What is missing from the symbol equation below.
2Na + 2 → 2NaOH + H2
H2
H2O
HCl
H2SO4
The products of the reaction of iron and hydrochloric acid are:
iron sulfate and hydrogen.
hydrogen and iron chloride.
iron chloride and iron oxide.
iron oxide and sulfuric acid.
Look at these diagrams showing some metals in acid. Choose the correct order of reactivity for metals X, Y and Z (the most reactive metal should be first).
Z, X, Y
Y, Z, X
X, Y, Z
Z, Y, X
Which of the following is the correct order of reactivity with acids (most reactive first)?
sodium, magnesium, iron, copper
copper, iron, sodium, magnesium
magnesium, sodium, iron, copper
sodium, iron, copper, magnesium
Zn + H2SO4 → + H2
SO4
H2SO4
ZnSO4
Zn(OH)2
Which of these pictures shows the particles in a solid, pure metal?
A
B
C
D
Which of the following best describes an alloy?
a pure metal
a mixture of compounds
a metal with one or more other elements mixed in
compound of a metal with a non-metal
A small amount of tin is added to lead. Compared to lead the melting point of the mixture will be:
unchanged
lower and less precise
higher and more precise
higher and less precise
