Topic 8 Fuels and Earth science

1 What are the chemical symbols for the elements carbon and hydrogen?

3 What state (solid, liquid or gas) is crude oil at room temperature?

8 How many years hundreds, thousands or millions does it take for crude oil to form?

11 Name the two elements found in hydrocarbons.

12 Crude oil is forming extremely slowly. Does this make it a finite resource or a non-renewable one?

13 Petrol comes from crude oil. Give one use for petrol.

14 Name the main hydrocarbon found in natural gas.

15 Diesel oil is being used up faster than crude oil forms. Does this make it a finite resource or a non-renewable one?

16 Name the polymer formed from ethene, which comes from crude oil.

21 Give one typical use of fuel oil.

26 What process is used to separate crude oil into useful mixtures?

28 Which fraction is more easily ignited, bitumen or kerosene?

29 Which fraction is more viscous, bitumen or kerosene?

32 What is the most abundant element in air?

33 Which gas reacts with hydrocarbons when they burn?

34 Name one fossil fuel used in cars.

35 Name a gas produced when carbon burns.

36 What compound forms when hydrogen burns in air?

38 To get a roaring blue Bunsen burner flame, do you open or close the air hole?

41 What are the products of the complete combustion of hydrocarbon fuels?

42 Which gas is produced during incomplete combustion, but not complete combustion, of hydrocarbon fuels?

43 What solid element is produced during the incomplete combustion of hydrocarbon fuels?

55 Name the homologous series to which ethane belongs.

57 What type of rain forms when sulfur dioxide, from some hydrocarbon fuels, dissolves in rainwater?