as the reaction mixture then distilled water and cools. Neutralisation of an solid ammonium acid with an alkali is an nitrate example of an exothermic hydrochloric acid reaction. and magnesium ribbon. An endothermic reaction is one that that takes in energy. Investigate the This cools the reaction temperature change mixture. Energy then when sports injury transfers from the packs or cooling packs surroundings as the reaction are activated. mixture then warms up Ask questions like: again. The reaction of citric produces the greatest acid and sodium hydrogen temperature change? carbonate is an example of Required practical 18: an endothermic reaction. Investigate the variables that affect the temperature changes of a series of reactions in solutions, eg acid plus metals, acid plus carbonates,
as the reaction mixture then cools. Neutralisation of an acid with an alkali is an example of an exothermic reaction. An endothermic reaction is one that that takes in energy. This cools the reaction mixture. Energy then transfers from the surroundings as the reaction mixture then warms up again. The reaction of citric acid and sodium hydrogen carbonate is an example of an endothermic reaction. distilled water and solid ammonium nitrate hydrochloric acid and magnesium ribbon. Investigate the temperature change when sports injury packs or cooling packs are activated. Ask questions like: produces the greatest temperature change? Required practical 18: Investigate the variables that affect the temperature changes of a series of reactions in solutions, eg acid plus metals, acid plus carbonates,
AQA-8465-SOW-MAI.DOCX