1. What is referred to as the change in the reactant or a product with time?A.) Chemical reaction2. What is the proportionality constant between the reaction rate and the concentrations of reactants?A.) Rate proportion3. In a transition state theory, what is/are the characteristic/s of an activated complex?A.) It is unstable because it is a short-lived molecule.B.) It possesses high energy.4. Which of the following statements is true?A.) Lowering the temperature speeds up the reactionB.) The AE of an exothermic reaction is positive.C.) Decreasing the activation energy increases the reaction rate.D.) Statements a, b, c are true.5. Why is it that an increase in the temperature speeds up the reaction?A.) It lessens the reactantsB.) More collisions are provoked between molecules6. What is the effect of increasing the concentration of a reactant in the reactant rate?A.) The rate of reaction increasesB.) The rate of reaction decreases7. Which of the following does not affect reaction rate?A.) Temperature8. How do catalysts speed up a chemical reaction?A.) The reaction becomes endothermicB.) The reaction becomes exothermicC.) Effective collision between reacting molecules is producedD.) An alternative pathway with lower activation energy is produced9. What is the order of reaction wherein the rate depends on the concentration of a single reactant raised to the first power?A,) First order reactions B.) Second order reactions10. What is the molal freezing point depression constant of water?A.) 1.86°C/m11.What is colligative properties?A.) Properties that depend solely on the kind and nature of solute but not on the number of particles of soluteB.) Properties that depend solely on the number of particles of solute present but not on the kind and nature of soluteC.) Properties that depend solely on the kind and nature of solvent but not on the number of particles of solventD.) Properties that depend solely on the number of particles of solvent present but not on the kind and nature of solvent12. Which of the following is the characteristic of a nonelectrolyte solution?A) completely ionized in solutionB.) in equation, the arrows only point to the direction of the formation of ionsC.) Does not ionize in solutionD.) conduct electricity13. What is the term used for the difference between enthalpies of products and enthalpies of reactant?A.) Enthalpy of equationB.) Enthalpy of surroundingsB.) Reaction constantC.) Reaction rateD.) Reaction equilibriumB.) Rate constantC.) Reaction RateD.) Reaction equilibriumC.) It is the rate-determining step in a reaction.D.) All of the aboveC.) The activation energy is increasedD.) None of theseC.) The rate of reaction is not affectedD.) the rate of reaction may increase or decreaseB.) Nature of reactantC.) Surface areaD.) PressureC.) Zero order reactions D.) Both a and bB.) 0.512°C/mC.) 6.26 °C/mD.) 2.52°C/mC.) System enthalpyD.) Enthalpy of the reaction

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