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ScotlandChemistryQuick questions

Area 2: Nature's Chemistry

Quick questions on Energy from fuels: combustion and calculating energy released - SQA National 5 Chemistry

3short Q&A pairs drawn directly from our worked dot-point answer. For full context and worked exam questions, read the parent dot-point page.

What is q1?
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Name the two products of the complete combustion of a hydrocarbon. [1 mark]
What is q2?
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A fuel heats 0.25 kg0.25 \text{ kg} of water by 30 C30 \text{ }^\circ\text{C}. Calculate the energy released (c=4.18c = 4.18). [2 marks]
What is q3?
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State one reason fossil fuels are described as finite. [1 mark]

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