MULTIPLE CHOICEDirections: Read carefully then choose which letter would be the best answer. Put only the letter on the space provided before each number._______1. What conditions must be met in order for a chemical reaction to occur?A. Collision with proper orientation B. Sufficient activation energyC. Adding more reactant particlesD. Both collision with proper orientation and sufficient energy_______2. Which of the following would NOT increase the rate of reaction?A. Increasing the temperatureB. Adding catalystC. Increasing the volume D. Increasing the concentrations_______3. Suppose you dissolve Zinc (Zn) in Hydrochloric acid (HCI) and add more acid than usual. Then drop pieces of Zinc. What factor does NOT affect the rate of the reaction?A. Surface area of the ZincB. Concentration of the reactantC. Temperature of the solution D. Amount of Hydrochloric acid_______4. Activation energy is the amount of energy required toA. Break the bonds between the reacting moleculesB. Make the reacting particles collideC. Form the bonds between the product molecules D. Convert the reactant to a single product_______5. Why does a candle burn rnore rapidly when placed in an open jar than in air?What accounts for this reaction?A. Higher Oxygen concentration B. Greater surface area of the jarC. Increasing the surrounding temperatureD. Length of the candle_______6. A chemical change that occurs when two or more substances combine to form a new substance.A. Activation EnergyB. Chemical KineticsC. Chemical ReactionD. Product_______7. The measure of the change in the concentration of the reactants or product.A. Activation EnergyB. Activation rateC. Chemical ReactionD. Concentration_______8. The substance or particles that enter into and is altered in the course of a chemical reaction.A. CatalystB. EnzymeC. ProductD. Reactant_______9. The number of particles present in a given volume of solution.A. CatalystB. ConcentrationC. ProductD. Temperature_______ 10. The measure Of how fast or slow a reaction happens.A. Activation EnergyB. Collision theory C. Particle SizeD. Rate of Reaction_______ 11. Condition that needs to be met for a chemical reaction to cccur.A. Substance must be homogeneous. B. Temperature should be kept constant.C. Particles should maintain a certain distance to each other.D. Particles in the substance must collide and have enough energy._______ 12. The factor that would NOT affect the rate of chemical reaction.A. ConcentrationB. HumidityC. Particle SizeD. Temperature_______13. The factor that will slow down the rate of chemical reaction.A. Manual stirring of the substance.B. Placing substance in a hot water.C. Placing products in iced water.D. Placing reactants in ice bath._______ 14. The factor that does NOT show evidence of chemical reaction.A. Absorption of heat B. Change of color C. Change of sizeD. Liberation of heat._______15. The measure of the hotness or coldness of a substanceA. EnergyB. HumidityC. TemperatureD. Thermometer_______16. The substance formed as a result of a chemical reaction.A. Product B. Reactant C. Resistance D. Substrate________17. The measure of how much exposed area a solid object has, expressed in square units.A. Volume B. Surface C. Surface Area D. Concentration_________18. The substance that is dissolved in a solution.A. Solid B. Solute C. Solvent D. Substance ________19. The component of a solution that is present in the geatest amount.A. Sample B. Solute C. Solvent D. Substance________20. A form of matter that has definite composition and distinct characteristics.A. Atoms B. Compound C. Mixture D. Substance​