Chemistry C1 4.3 Burning fuels.

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What does burning hydrocarbons in plenty of air produce?
Carbon dioxide and water.
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What might burning hydrocarbons in a limited supply of air produce?
Carbon monoxide and solid particles that contain soot (carbon) and unburnt hydrocarbons called particulates..
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What do sulfur compounds in fuel burn to produce?
Sulfur dioxide.
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What can be formed when fuels burn under extreme conditions?
Oxides of nitrogen.
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What happens to pure hydrocarbons when they burn completely?
They are oxidised (to carbon dioxide and water), however the fuels we use are not always burned completely , they may contain other substances.
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What do most fossil fuels contain?
Sulfur compounds.
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What is produced when fuels containing sulfur compounds are burned?
Sulfur dioxide.
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What does sulfur dioxide cause?
Acid rain.
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At the high temperatures produce when fuels burn, what may oxygen and nitrogen in the air combine to form?
Nitrogen oxides.
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What do nitrogen oxides cause?
Acid rain.
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What is the word equation for the complete combustion of ethane?
Ethane + oxygen (arrow symbol) carbon dioxide + water.
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What are the possible products of the incomplete combustion of a hydrocarbon?
Carbon monoxide, carbon, unburnt hydrocarbon, water.
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What environment problem is caused by sulfur dioxide and nitrogen oxides?
Acid rain.
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**YOU MUST BE ABLE TO WRITE BALANCED SYMBOL EQUATIONS FOR THE COMPLETE AND INCOMPLETE COMBUSTION OF A HYDROCARBON WHEN GIVEN ITS FORMULA, LOOK THIS UP AND PRACTICE**
**
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Card 2

Front

What might burning hydrocarbons in a limited supply of air produce?

Back

Carbon monoxide and solid particles that contain soot (carbon) and unburnt hydrocarbons called particulates..

Card 3

Front

What do sulfur compounds in fuel burn to produce?

Back

Preview of the front of card 3

Card 4

Front

What can be formed when fuels burn under extreme conditions?

Back

Preview of the front of card 4

Card 5

Front

What happens to pure hydrocarbons when they burn completely?

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