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WorksheetsMetalsss! :)
Total questions: 10
Worksheet time: 5mins
Metals are good conductors of electricity
True
False
Why can metals conduct electricity?
The have a metallic bonding
They have free electrons
They have a high melting point
They are positively charged
In alloys, the metallic lattice is _________
broken
fixed
distorted
flexible
Which of the following pairs are alloys?
iron and bronze
brass and bronze
steel and copper
steel and iron
metal + acid --> salt + ______
oxygen
carbon dioxide
helium
hydrogen
metal carbonate + acid --> salt + _____ + _______
water, hydrogen
hydrogen, carbon dioxide
water, carbon dioxide
hydrogen, metal oxide
In a positive test for CO2, limewater turns .......
salty
watery
cloudy
sour
Which of the following is true for metals?
They have high melting points
They are soft
They are all solid at room temperature
They have high densities.
What is the name of the insoluble precipitate formed when CO2 reacts with limewater?
calcium hydroxide
copper carbonate
calcium carbonate
copper sulphate
What happens in a displacement reaction?
a gas is given off when a metal reacts with another metal
a more reactive metal displaces a less reactive one
a more reactive metal is displaced by a less reactive one
