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4.3 Factors Affecting the Rate of a Chemical Reaction

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Erica Ortt

on 4 January 2013

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Transcript of 4.3 Factors Affecting the Rate of a Chemical Reaction

4 Factors that
can affect the rate
of a Chemical Reaction The presence of a catalyst
The concentration of the reactants
The temperature of the reactants
The surface area of the reactants Surface Area - increasing the surface area of the reactants will also increase the rate of a reaction

- you can do this by breaking up the reactants into smaller pieces Enzymes Help reactions go faster! Factors that Effect
the Rate of Chemical Change Section 4.3 -Help reactions go faster! Are not consumed during the reaction - Ex. Enzymes in your body! Concentration - the greater the concentration of the reactants, the faster the reaction Temperature - the more heat added to a reaction, the faster it will occur - makes atoms move faster Hydrogen Peroxide is a toxic waste product produced in cells An enzyme called catylase speeds up it's breakdown into Oxygen and Water
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