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Rates of reaction.
Member rating: No Rating | Words: | Submitted: Mon Oct 20 2003
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SC1 INVESTIGATION: RATES OF REACTION> Introduction The rate of a reaction is the speed at which a chemical reaction takes place. A chemical reaction is when substances are combined to form new products. Chemical reactions are permanent changes and involve energy to change them In our world, there are millions of chemical reactions happening everywhere. To control the speed of chemical reactions is important, both in our everyday lives and when manufacturing raw materials on an industrial scale, as it helps reduce costs. A few examples of chemical reactions, which take place around us everyday and in factories, are given below: * The burning of petrol in cars. * The browning of an apple which has been bitten. * Respiration taking place in our living cells. * Photosynthesis taking place in green plants (with the aid of sunlight). * The rusting of iron. * Fireworks and other explosions. * Forming plastics from oil. * Producing iron from iron ore....
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