C7. Chemical Reactions C7.1 Rate of Reaction Measuring Rate: Time experiments with readings at intervals. Calculate rate using collected data. Factors Affecting Reaction Rate: Temperature (): Higher temperature increases the rate due to faster particle movement. Concentration: Higher concentration increases collisions, speeding up the reaction. Surface Area: Smaller particles with larger surface area ignite or react quickly. Catalysts: Substances that speed up reactions without being consumed. C7.2 Redox Reactions Redox: Simultaneous oxidation and reduction in a reaction. Oxidation: Gain of oxygen or loss of electrons. Reduction: Loss of oxygen or gain of electrons. Agents: Oxidizing Agent: Substance that gets reduced. Reducing Agent: Substance that gets oxidized.