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Crude oil is a mixture of hydrocarbons - Edexcel - GCSE Chemistry - Question 5 - 2013 - Paper 1

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Crude oil is a mixture of hydrocarbons. (a) The diagram shows a molecule of each of three substances, A, B and C. Substance B is a hydrocarbon. Substances A and C ... show full transcript

Worked Solution & Example Answer:Crude oil is a mixture of hydrocarbons - Edexcel - GCSE Chemistry - Question 5 - 2013 - Paper 1

Step 1

Explain why substance B is a hydrocarbon.

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Answer

Substance B is considered a hydrocarbon because it contains only carbon and hydrogen atoms. This structure is characteristic of hydrocarbons, which are organic compounds that consist entirely of these two elements.

Step 2

Complete the sentence by putting a cross (X) in the box next to your answer.

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Answer

The correct option is:

  • X burns to produce heat energy.

Step 3

Write the word equation for this reaction.

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Answer

The word equation for the complete combustion of octane is:

Octane + Oxygen → Carbon Dioxide + Water.

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