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Factors Affecting the Rate of Catalytic Decomposition of Hydrogen Peroxide.
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Chemistry Science 1 GCSE Coursework: Factors Affecting the Rate of Catalytic Decomposition of Hydrogen Peroxide What is a reaction ? A reaction occurs when two fast moving particles collide to produce a product. This product is only produced if the two particles have enough energy to either join or decompose, this amount of energy is called the activation energy. Possibilities when particles collide Reaction A B No reaction A B Particles bounce apart Hydrogen Peroxide decomposes in a slow, exothermic reaction to form oxygen and water. As the reaction is slow, a catalyst is used to speed it up. A suitable catalyst for this investigation is Manganese Dioxide (Mn02 - a black powder). The definition of a catalyst is : - A substance that increases the rate of a chemical reaction but undergoes no permanent chemical change itself The equation for the reaction is : Mn02 Catalyst Hydrogen Peroxide Oxygen + Water (+ Heat) Mn02 Catalyst H202 O2 + H20...
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