Reading 3.1 Burning Fuels

Fuels are substances that....

• make the earth cooler

• gain energy when burned

• release energy when burned.

• create free energy

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When we burn something we are creating

• a new form of energy

• new elements

• more atoms

• a chemical reaction

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In a chemical reaction

• matter is created

• the reactants rearrange to form the products

• the products form a new reactant

• atoms are destroyed

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What did Lavoisier discover?

• America

• The products and reactants have the same mass

• the reactants always have less mass than the product

• when fuel burn they just disappear

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The law of conservation of matter...

• old matter is destroyed and new matter is created

• new matter is created in every reaction

• matter cannot be created or destroyed

• we should conserve all our matter

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When gasoline burns the products it creates...

• are invisible gasses

• are different types of fuels

• are new elements

• can power more cars

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Ethanol is made up of

• carbon hydrogen and helium

• carbon hydrogen and oxygen

• oxygen sodium and carbon

• carbon dioxide and water

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Burning reactions release energy in the form of

• heat

• heat and water

• sound and light

• heat and light

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Burning ethanol creates...

• carbon dioxide and water

• oxygen and carbon dioxide

• carbon and helium

• gasoline

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Burning fuels cause the reactants to

• rearrange and create new substances

• disappear

• multiply

• make new and differnt atoms

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