Metals

Question 1

Order of the reactivity series

Answer 1

Potassium, sodium,calcium,magnesium,aluminium,carbon,zinc,iron,hydrogen,copper,silver,gold.

Question 2

What fossil fuels produce carbon dioxide on combustion?

Answer 2

Coal, natural gas and petroleum.

Question 3

Describe petroleum as…

Answer 3

A mixture of hydrocarbons and its separation into useful fractions by fractional distillation.

Question 4

What is the fuel for cars?

Answer 4

Gasoline

Question 5

What is refinery gas used for?

Answer 5

Bottled as gas for heated and cooking

Question 6

What is the fuel for lorries and tractors?

Answer 6

Diesel oil(light gas oil)

Question 7

What is kerosene(paraffin) used for?

Answer 7

Fuel for jet aircraft and heating

Question 8

Define galvanising

Answer 8

A method of rust prevention. The iron or steel object is coated in a thin layer of zinc. This stops oxygen and water reaching the metal underneath - but the zinc also acts as a sacrificial metal.