Pre-Lab Assignment Factors Affecting the Rate of a Reaction Name, Section # 1. According to the Collision Theory, temperature and concentration are two of the four factors that influence the rate of a chemical reaction. What are the other two factors that influence reaction rate? N 2. You will study the effect of temperature and concentration on the reaction between potassium permanganate (KMnO4) and oxalic acid (H.CO). a) Why must you wear gloves while using potassium permanganate? b) After you mix these reactants, you will time how long it takes the reaction to reach completion. How will you recognize when the reaction is complete? c) What will be the concentration of potassium permanganate (in moles/liter of solution) in solution when the reaction reaches completion? d) When you increase the concentration of a reactant, should it take more time or less time for the reaction to reach completion? Explain in terms of the Collision Theory. c) When you increase the temperature of the reaction mixture, should it take more time or less time for the reaction to reach completion? Explain in terms of the Collision Theory.