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7 Cards in this Set
- Front
- Back
- 3rd side (hint)
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Fossil fuels are: |
Formed naturally over millions of years. Finite a non-renewable because they are used up much faster than new supplies can be formed - they will be used up in the future. All easily extracted. |
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What does non-renewable mean? |
Once it used up there will be no more of it |
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Definition of combustion |
When fuel reacts with oxygen (in air) they burn and release useful heat energy this is called combustion, and it needs a plentiful supply of oxygen (air) |
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Hydrocarbons are compounds that contain only carbon and hydrogen how many bonds can the carbon and hydrogen make? |
Carbon atoms can make four bonds each. Hydrogen atoms can make one bond each. |
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What are some common properties if polymers (plastic stuff) |
Light Flexible Easily moulded Can be printed on Light Poor conductor of heat Lightweight Waterproof Tough Can be coloured |
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What's another name for sodium chloride? |
Table salt |
All of the internet |
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What formula do you use to calculate percentage yield |
Actual yield/Predicted yield x 100 |
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