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Some people use a hand warmer to warm their hands in winter - Edexcel - GCSE Chemistry - Question 1 - 2012 - Paper 1

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Some people use a hand warmer to warm their hands in winter. (a) A chemical reaction takes place in the hand warmer. This reaction gives out heat energy. Give the ... show full transcript

Worked Solution & Example Answer:Some people use a hand warmer to warm their hands in winter - Edexcel - GCSE Chemistry - Question 1 - 2012 - Paper 1

Step 1

Give the name for reactions that give out heat energy.

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Answer

The reactions that give out heat energy are called exothermic reactions.

Step 2

Complete the word equation for this reaction.

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Answer

The word equation is:

iron + oxygen → iron oxide

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