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What is exothermic reaction and endothermic reaction? Give examples |
| Exothermic reactions These are reactions that transfer energy to the surroundings. The energy is usually transferred as heat energy, causing the reaction mixture and its surroundings to become hotter. The temperature increase can be detected using a thermometer. Some examples of exothermic reactions are: burning neutralisation reactions between acids and alkalis the reaction between water and calcium oxide Endothermic reactions These are reactions that take in energy from the surroundings. The energy is usually transferred as heat energy, causing the reaction mixture and its surroundings to get colder. The temperature decrease can also be detected using a thermometer. Some examples of endothermic reactions are: electrolysis the reaction between ethanoic acid and sodium carbonate |
