WorksheetsG7 Chemistry Review Part 1
Total questions: 27
Worksheet time: 14mins
Which metal rusts?
Copper
manganese
iron
potassium
A rusting bicycle is a ____________.
physical change
chemical change
What is the chemical name given to rust?
Iron dioxide
Iron oxide
Steel oxide
Carbon dioxide
What prevents rusting?
Painting, Oiling, Galvanizing
Washing with water
Leaving it outside
Adding salt
Rusting occurs in the presence of ________ (check more than one).
oxygen
water
hydrogen
iron
Which of the following can rust?
What is the function of the anhydrous calcium chloride in this investigation?
To protect the iron nail
To increase the rate of the rusting process
To absorb the moisture in the air
To supply oxygen in the test tube
Which nail rusts first?
Nail in test tube A
Nail in test tube C
Nail in test tube E
Nail in test tube F
Rusting only occurs when there is a presence of both water and air (oxygen).
True
False
Rusting will occur fastest in _______.
distilled water
tap water
saltwater
all of these at the same speed
Metal + Acid -> ___ + ___
Salt + Hydrogen
Metal Hydroxide + Hydrogen
Metal Oxide + Hydrogen
Metal Carbonate + Hydrogen
Sodium + Hydrochloric acid ->
Sodium chlorine
Sodium chlorine + hydrogen
Sodium chloride + hydrogen
Sodium chloride
How can you test for hydrogen gas?
sniff it
squeaky pop test
add universal indicator
add lemon water
Metals are good conductor of
Only heat
Only electricity
Heat and electricity both
None of the above
Metal + oxygen =
Metal hydroxide
Metal oxide
Salt
True or False:
Lead is more reactive than iron.
True
False
Which of the following does not react with water?
Copper
Lithium
Sodium
Potassium
Choose the most reactive metal
calcium
magnesium
iron
copper
Guess which metal is reacting with water? (from the image)
Zinc
Chlorine
Sodium
Copper
Which of the following metals is more reactive than Iron?
Lead
Copper
Zinc
Silver
