Energy changes in reactions

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Distinguish exothermic from endothermic reactions using temperature changes and give everyday examples (hand warmers, self-heating cans, sports injury packs)
Required practical: investigate the variables that affect the temperature change of reacting solutions such as neutralisation or displacement reactions
Draw and interpret reaction profiles showing reactants, products, activation energy and overall energy change

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(Cambridge Extended, OCR, WJEC) Describe hydrogen fuel cells and compare them with batteries and fossil fuels

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