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Rates of Reaction.
Member rating: No Rating | Words: | Submitted: Mon Nov 17 2003
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Rates of Reaction Aim: The aim of this investigation is to clarify how the concentration of Sodium Thiosulphate affects the rate of a reaction when it is reacted with dilute hydrochloric acid at controlled conditions. Scientific Introduction: In chemical reactions, atoms are rearranged, the molecules must come together and collide before any thing can start to happen. Chemical reactions are caused when two or more substances collide with each other to cause a rearrangement of the atoms. The Collision Theory: For a reaction to happen between two molecules they must collide. It is because of the collisions between two or more molecules that the reaction occurs, faster collisions will increase the rate of reaction because there are molecules colliding together more frequently. When there is a greater surface area the rate of reaction will increase due to the molecules bumping into each other. The rate of reaction increases when the temperature increases because the temperature...
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