Kinetics quiz Loading... 1. What is a catalyst?A substance that helps dissolve insoluble reagents to speed up the rate of reactionA substance that speeds up a chemical reaction but is chemically unchanged at the end of the reactionA substance that speeds up a chemical reaction but is used up as the reaction proceedsA substance that slows down a chemical reaction but is chemically unchanged at the end of the reactionQuestion 1 of 15 Loading... 2. What is meant by the term activation energy?The energy provided by the catalyst to allow a reaction to proceedThe maximum energy of the final product for it to be stableThe minimum energy that the particles in collision must have if a reaction is going to occurThe energy released by the reactionQuestion 2 of 15 Loading... 3. What simple change could be made to a reaction to speed it up dramatically?Decrease the surface areaDecrease the concentrationDecrease the pressureHeat it upQuestion 3 of 15 Loading... 4. Give a simple reaction can be used to investigate the effect of changing concentration on the rate of reactionIron ore of various concentrations reacted via the displacement method to produce ironSodium hydroxide of various concentrations added to hydrochloride acid to produce sodium chlorideEthene of various concentrations reacted with water to make ethanolMarble chips added to hydrochloric acid of various concentrationsQuestion 4 of 15 Loading... 5. What happens to the rate of reaction if a catalyst is added?Rate of reaction decreasesRate of reaction increasesReaction stopsRate of reaction is unaffectedQuestion 5 of 15 Loading... 6. Explain the effects of increasing the concentration of solutions on the rate of a reaction in terms of particle collision theory1) more particles in same space 2) less frequent collisions 3) increase rate of reaction1) more particles in same space 2) more frequent collisions 3) increase rate of reaction1) more particles in same space 2) more frequent collisions 3) decrease rate of reaction1) more particles in same space 2) less frequent collisions 3) decrease rate of reactionQuestion 6 of 15 Loading... 7. Explain how a catalyst worksA catalyst provides an alternative pathway with lower activation energyA catalyst increases the concentration of the reagents by taking up water to increase the rate of reactionA catalyst reduces the activation energy of the reactionA catalyst increases the surface area of the reagents to increase the rate of reactionQuestion 7 of 15 Loading... 8. Explain the effects of increasing the surface area of a solid on the rate of a reaction in terms of particle collision theory1) more particles exposed 2) less frequent collisions 3) increase rate of reaction1) more particles exposed 2) less frequent collisions 3) decrease rate of reaction1) more particles exposed 2) more frequent collisions 3) increase rate of reaction1) more particles exposed 2) more frequent collisions 3) decrease rate of reactionQuestion 8 of 15 Loading... 9. State the catalyst used for making oxygen through the decomposition of hydrogen peroxideVanadium (V) oxide V₂O₅Magnesium (II) oxide, MgO₂Manganese (IV) oxide, MnO₂Potassium permanganate (VII), KMnO₄Question 9 of 15 Loading... 10. Give a simple reaction can be used to investigate the effect of changing surface area on the rate of reactionLarge chips or powdered sodium nitrate added to hydrochloric acidLarge chips or powdered ion ore reacted to produce iron using the displacement methodHydrochloric acid added to either marble chips or powdered calcium carbonateBurning powdered magnesium or strips of magnesium in airQuestion 10 of 15 Loading... 11. What reactant is used to produce a sample of oxygen in the lab?waterhydrogen peroxidemanganese oxidemagnesium oxideQuestion 11 of 15 Loading... 12. With how much energy must two particles collide for a reaction to occur?The particles must collide with an energy greater than the activation energyThe particles must collide with an energy equal to the activation energyThe particles must collide with an energy less than the activation energyThe particles must collide with an energy greater than or equal to the activation energyQuestion 12 of 15 Loading... 13. Calcium carbonate reacts with an excess of hydrochloric acid in a flask. The volume of carbon dioxide given off is measured in a gas syringe. This is shown on the graph. How would the graph look different if the reaction was done with twice the volume of the acid?No change. Line would look the same.Line rises more steeply. Levels out at same level.Line rises more steeply. Levels out at a level twice as high as the original.Line rises at the same rate, but levels out at twice the height.Question 13 of 15 Loading... 14. Large chips of calcium carbonate reacts with an excess of hydrochloric acid in a flask. The volume of carbon dioxide given off is measured in a gas syringe. This is shown on the graph. How would the graph look different if the reaction was done with a powdered calcium carbonate?Line rises more steeply. Levels out at higher level.Line rises less steeply. Levels out at lower level.Line rises more steeply. Levels out at same level.Line rises at same rate, but levels out at a higher level.Question 14 of 15 Loading... 15. What type of substance speeds up a chemical reaction but is chemically unchanged at the end of the reaction?ReagentCatalystSoluteOreQuestion 15 of 15 Loading... Related Posts:The entire quiz question bank!The entire quiz question bank (Double only)!Key Calculations quizEquilibria (triple) quizCondensation Polymers quizElectrolysis quiz Hydr0Gen2020-02-16T16:44:05+00:00Categories: Uncategorized|Tags: Quiz, Topic: Kinetics| Share This Story, Choose Your Platform! FacebookXRedditLinkedInTumblrPinterestVkEmail