Kinetics quiz Loading... 1. Explain how a catalyst worksA catalyst provides an alternative pathway with lower activation energyA catalyst reduces the activation energy of the reactionA catalyst increases the surface area of the reagents to increase the rate of reactionA catalyst increases the concentration of the reagents by taking up water to increase the rate of reactionQuestion 1 of 15 Loading... 2. State the catalyst used for making oxygen through the decomposition of hydrogen peroxidePotassium permanganate (VII), KMnO₄Magnesium (II) oxide, MgO₂Manganese (IV) oxide, MnO₂Vanadium (V) oxide V₂O₅Question 2 of 15 Loading... 3. Hydrochloric acid reacts with an excess of calcum carbonate 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 the same volume of acid, but with an acid which is twice as concentrated?The line would rise at the same rate, but finish at twice the height of the original.The line would rise more steeply, and finish at a twice the height of the original.The line would rise more steeply, and finish at a higher level than the original, but how much higher would depend on whether the calcium carbonate were still in excess.No change. Line would look the same.Question 3 of 15 Loading... 4. What happens if two particles collide with less than the activation energyThe reaction only goes partwayThe particles fuse togetherNo reactionThe reaction still occurs but very slowlyQuestion 4 of 15 Loading... 5. Give a simple reaction can be used to investigate the effect of changing surface area on the rate of reactionHydrochloric acid added to either marble chips or powdered calcium carbonateBurning powdered magnesium or strips of magnesium in airLarge chips or powdered sodium nitrate added to hydrochloric acidLarge chips or powdered ion ore reacted to produce iron using the displacement methodQuestion 5 of 15 Loading... 6. What happens to the rate of reaction if the temperature is INCREASED?Reaction stopsRate of reaction increasesRate of reaction decreasesRate of reaction is unaffectedQuestion 6 of 15 Loading... 7. Give a simple reaction can be used to investigate the effect of changing concentration on the rate of reactionSodium hydroxide of various concentrations added to hydrochloride acid to produce sodium chlorideEthene of various concentrations reacted with water to make ethanolIron ore of various concentrations reacted via the displacement method to produce ironMarble chips added to hydrochloric acid of various concentrationsQuestion 7 of 15 Loading... 8. With how much energy must two particles collide for a reaction to occur?The particles must collide with an energy greater than or equal to the activation energyThe particles must collide with an energy less than the activation energyThe particles must collide with an energy equal to the activation energyThe particles must collide with an energy greater than the activation energyQuestion 8 of 15 Loading... 9. Explain the effects of increasing the pressure of gases on the rate of a reaction in terms of particle collision theory1) more particles in same space 2) less frequent collisions 3) decrease rate of reaction1) more particles in same space 2) less 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) more frequent collisions 3) increase rate of reactionQuestion 9 of 15 Loading... 10. The reaction between magnesium and hydrochloric acid was used to measure the rate of reaction at different temperatures. Name 4 things which should be kept constant.Volume of acid. Concentration of acid. Mass of magnesium. Temperature of acid.Volume of acid. Concentration of acid. Mass of magnesium. Surface area of magnesium. Temperature of acid.Volume of acid. Concentration of acid. Mass of magnesium. Volume of acid. Concentration of acid. Mass of magnesium. Surface area of magnesium.Question 10 of 15 Loading... 11. What reactant is used to produce a sample of oxygen in the lab?magnesium oxidemanganese oxidehydrogen peroxidewaterQuestion 11 of 15 Loading... 12. On a graph showing gas produced (vertical axis) over time (horizontal axis), how does the line tell us the rate of reaction?The longer the line, the faster the rate of reactionThe steeper the line, the slower the rate of reactionThe steeper the line, the faster the rate of reactionThe longer the line, the slower the rate of reactionQuestion 12 of 15 Loading... 13. What type of substance speeds up a chemical reaction but is chemically unchanged at the end of the reaction?OreSoluteCatalystReagentQuestion 13 of 15 Loading... 14. 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 slows down 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 proceedsQuestion 14 of 15 Loading... 15. 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) decrease rate of reaction1) more particles exposed 2) more frequent collisions 3) decrease rate of reaction1) more particles exposed 2) less frequent collisions 3) increase rate of reaction1) more particles exposed 2) more frequent collisions 3) increase rate of reactionQuestion 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