What Happens When Fuels Burn

Why is the water produced by burning hydrogen considered less harmful to Earth's climate compared to carbon-containing fuels?

• It produces more energy

• It is a visible gas

• It does not produce carbon dioxide

• It is cheaper to produce

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What is the title of the Article you jus read

• What Happens When Fuels Burn?

• What Happens When petrol Burn?

• What Happens When Papers Burn?

• What Happens When trees Burn?

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When fuel burns, it releases

• energy

• electricity

• fuel

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The word equation for combustion is: fuel + oxygen --> water + ________ __________

• limewater

• carbon dioxide

• carbon monoxide

• water vapour

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For any fuel to burn, there must be a supply of (a)   gas.

In all chemical reactions substances change into other substances as the atoms of the reactants rearrange to form the products.

• true

• false

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When gasoline burns, it doesn’t seem to change into a different substance. Instead, it seems to disappear, leaving you with an empty tank.

• This is because all gasoline atoms rearrange and form a new substance that is a gas which escapes from the container.

• This is because all gasoline atoms disappear

• This is because all gasoline atoms stop existing

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What is the primary gas released when fossil fuels are burned?

• A) Oxygen

• B) Nitrogen

• C) Carbon Dioxide

• D) Hydrogen

Which of the following is a common byproduct of burning coal?

• A) Sulfur Dioxide

• B) Helium

• C) Methane

• D) Ammonia

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What is the main reason burning fuels contributes to global warming?

• A) It releases oxygen into the atmosphere

• B) It produces carbon dioxide, a greenhouse gas

• C) It absorbs sunlight

• D) It cools the Earth's surface

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