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WorksheetsRevision for Shell Mid Terms
Total questions: 20
Worksheet time: 12mins
Which safety precaution should you take when doing an experiment with sulfuric acid?
Work in a fume cupboard.
Tuck your tie in and tie your hair back.
Wear goggles
Wear a lab coat
Magnesium has an atomic number of 12. This means that a magnesium atom contains 12 (a) .
Use this picture to work out the formula of acetylene.
CH4
C2H2
C4H4
C3H8
Electrons are negative, protons and positive and neutrons have a charge of (a) .
Atoms with the same number of protons but different numbers of neutrons are called:
ions
metals
non-metals
isotopes
Who discovered the Periodic Table?
Dmitri Mendeleev
Isaac Newton
John Newlands
Robert Falcon Scott
If you double the concentration of one of the reactants, the (a) of reaction doubles.
This balanced equation contains:
An oxygen molecule
A magnesium atom
Two water molecules
Two methane molecules
The Earth's atmosphere is mostly:
oxygen
nitrogen
carbon dioxide
water vapour
The total amount of carbon dioxide emitted over the full life cycle of a product, service or an event is known as:
carbon footprint
carbon tax
greenhouse effect
global warming
Which element is reacting with water here?
lithium
sodium
potassium
caesium
When we say 'Water is potable', what does potable mean?
sold in cans
easy to find
fit to drink
in the liquid state
Which element is below copper in the reactivity series?
potassium
aluminium
lead
gold
aluminium oxide + (a) --> aluminium + iron oxide
When a hydrocarbon fuel undergoes complete combustion, the products are always
carbon dioxide + hydrogen
carbon + hydrogen
carbon dioxide + water
carbon monoxide + hydrogen
Name this alkane
methane
ethane
propane
butane
As the number of carbon atoms increases, alkane become more:
volatile
viscous
The test for oxygen is that it
burns with a squeaky pop
relights a glowing splint
turns limewater milky
bleaches damp litmus paper
Which of these is a displacement reaction?
copper oxide + zinc --> copper + zinc oxide
sodium + chlorine --> sodium chloride
calcium carbonate --> calcium oxide + carbon dioxide
carbon dixoide + water --> glucose + oxygen
Fluorine has an Ar of 19 and aluminium has an Ar of 27. The Mr of aluminium fluoride, AlF3 is:
46
65
84
100
