Crude Oil, Hydrocarbons and Alkalines 4.7.1.1 Flashcards
1
Q
Name all 3 fossil fuels
A
- Coal
- Oil
- Gas
2
Q
How is oil formed/made?
A
- Oil and gas were formed from tiny plants and animals that lived in the sea millions of years ago.
- The plants and animals fell to the sea bed when they died and got buried in mud and sand. The mud stopped them rotting away.
- More mud buried the dead animals and they urn into oil and gas.
3
Q
How is coal formed/made?
A
- Coal was formed from dead plants that lived long ago.
- When the plants died they were buried in mud. The mud stopped them rotting away.
- More layers of the mud squashed the fossils. Heat from inside the earth turned the plants fossils into coal.
4
Q
What is meant by finite?
A
A resource that cannot be replaced (in our lifetime) so will eventually run out.
5
Q
What are alkanes?
A
- saturated hydrocarbon
- most hydrocarbons in crude oil belong to the homologous series - know as the alkanes
- covalently bonded and simple structure
6
Q
What is the general formular for alkanes?
A
CnH2n+2
7
Q
What is the formula of methane?
A
CH4
8
Q
What is the formula for ethane?
A
C2H6
9
Q
What is the formula for Propane?
A
C3H8
10
Q
What is the formula for Butane?
A
C4H10
