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- 1. Multiple ChoiceIncreasing concentration .......................... rate.increasesdecreasesdoesn't affect
- 2. Multiple ChoiceIncreasing temperature .............................. rate.increasesdecreasesdoesn't affect
- 3. Multiple ChoiceIncreasing pressure ............................. rate.increasesdecreasesdoesn't affect
- 4. Multiple ChoiceIncreasing surface area ........................ rate.increasesdecreasesdoesn't affect
- 5. Multiple ChoiceAdding a catalyst ..........................the rate of a specific reaction.increasesdecreasesdoesn't affect
- 6. Multiple ChoiceChoose the one that WOULD NOT increase the rate of reaction between acid and marble chips.Increasing temperatureincreasing surface area of marble chipsincreasing concentration of acidadding an iron catalyst
- 7. Multiple ChoiceCrushing marble chips to a powder would................ the surface area.increasedecreasenot affect
- 8. Multiple ChoiceExplain how increasing concentration increases the rate of the reaction?More particles in the same volume. More frequent effective collisions.Less particles in the same volume. Less frequent collisions.
- 9. Multiple ChoiceWhich of these would increase the rate of a reaction?Use a bigger beakerIncrease the temperatureHave someone else timing
- 10. Multiple ChoiceExplain how increasing pressure affects rateMore exposed reacting particles. More frequent effective collisions.Particles have more kinetic energy. Particles move faster. More frequent effective collisions.Same number of gas particles in smaller volume. More frequent effective collisions.Lowers the activation energy, by providing an alternative route.
- 11. Multiple ChoiceExplain how increasing surface area affects rateMore exposed reacting particles. More frequent effective collisions.Particles have more kinetic energy. Particles move faster. More frequent effective collisions.Same number of gas particles in smaller volume. More frequent effective collisions.Lowers the activation energy, by providing an alternative route.
- 12. Multiple ChoiceExplain how increasing temperature affects rateMore exposed reacting particles. More frequent effective collisions.Particles have more kinetic energy. Particles move faster. More frequent effective collisions.Same number of gas particles in smaller volume. More frequent effective collisions.Lowers the activation energy, by providing an alternative route.
- 13. Multiple ChoiceExplain how adding a catalyst increases the rate of the reactionMore exposed reacting particles. More frequent effective collisions.Particles have more kinetic energy. Particles move faster. More frequent effective collisions.Same number of gas particles in smaller volume. More frequent effective collisions.Lowers the activation energy, by providing an alternative route.
- 14. Multiple Choice
Exothermic?
- 15. Multiple ChoiceWhat is activation energy?The minimum amount of energy needed for particles to react.The maximum amount of energy needed for particles to react.
- 16. Multiple Choice
Which curve shows the catalysed reaction?
1
2
- 17. Multiple ChoiceHow do you calculate the rate of reaction?Amount of reactant or product ÷ time takentime taken ÷ amount of reactant or product
- 18. Multiple ChoiceWhere is the reaction fastest?At the beginning, where it's steepestAt the endIn the middleWhen the line goes horizontal
- 19. Multiple ChoiceWhere does the reaction finish?At the beginningAt the endIn the middleWhen the line goes horizontal
- 20. Multiple ChoiceWhat is a compound made of hydrogen and carbon only?HydrogencarbonateCarbohydrateHydrocarbonHydroxide
- 21. Multiple ChoiceName this alkane C3H8.ButanePropaneEthaneMethane
- 22. Multiple ChoiceWhich hydrocarbon is this?ethaneethenepropanepropene
- 23. Multiple ChoiceWhat is crude oil?A mixture of hydrocarbonsA compound of hydrocarbonsA hydrocarbonA formulation
- 24. Multiple ChoiceWhich step IS NOT involved in the fractional distillation of crude oil?Crude oil separates into hydrocarbons with different boiling points.Crude oil is burned.Crude oil enters the fractionating column.Crude oil is vapourised by heating.
- 25. Multiple ChoiceWhere do large hydrocarbon chains separate in fractional distillation?At the top where it's hot.At the top where it's cool.At the bottom where it's hot.At the bottom where it's cool.
- 26. Multiple ChoiceWhat does cracking do?Breaks up long carbon chains into smaller alkane and alkene.Joins monomers together to make long chains.
- 27. Multiple ChoiceChoose the formula for propeneC2H4C3H6C3H8C2H6
- 28. Multiple ChoiceWhat do you see when you test an alkene with bromine water?Goes clear.Goes from orange to colourless.Goes from colourless to orange.Stays orange and clear.
- 29. Multiple ChoiceName the polymer made from the monomer ethene.poly(ethene)poly(ethane)
- 30. Multiple ChoiceWhat does 'pure substance' mean?No bacteria.You can drink it.It's natural.Contains one element or compound.
- 31. Multiple ChoiceHow do boiling point/melting points tell you if a substance is pure?Happens at a specific temperature, not a range.Happens at a range, not a specific temperature.
- 32. Multiple ChoiceWhat is a mixture designed as an useful product?SolutionFormulationPureCompound
- 33. Multiple ChoiceChoose the one that is NOT a formulation.Paintcosmeticssugarmedicine
- 34. Multiple ChoiceIn chromatography, spots move higher up the paper if it is more attracted to what? (stationary paper or mobile solvent)MobileStationary
- 35. Multiple ChoiceChromatography: If the spot moves 4cm and the solvent 10cm, calculate the Rf value.460.40.6
- 36. Multiple ChoiceWhat is the test and result for hydrogen?Damp blue litmus paper. Goes white (bleached)Lit splint. Squeaky pop.Glowing splint. Relights.Bubbles through limewater goes cloudy.
- 37. Multiple ChoiceWhat is the test and result for oxygen?Damp blue litmus paper. Goes white (bleached)Lit splint. Squeaky pop.Glowing splint. Relights.Bubbles through limewater goes cloudy.
- 38. Multiple ChoiceWhat is the test and result for carbon dioxide?Damp blue litmus paper. Goes white (bleached)Lit splint. Squeaky pop.Glowing splint. Relights.Bubbles through limewater goes cloudy.
- 39. Multiple ChoiceWhat is the test and result for chlorine?Damp blue litmus paper. Goes white (bleached)Lit splint. Squeaky pop.Glowing splint. Relights.Bubbles through limewater goes cloudy.
- 40. Multiple ChoiceWhat is the % of N2 in the atmosphere today?788778
- 41. Multiple ChoiceWhat is the % of O2 in the atmosphere today?0.0121221
- 42. Multiple ChoiceWhat is the % of CO2 in the atmosphere today?30.030.330
- 43. Multiple ChoiceWhich has NOT reduced the % CO2 from the early atmosphere to now?Photosynthesis from algae and plants.Dissolved in oceans.Locked away by sedimentary rocks and fossil fuels.Respiration from animals.
- 44. Multiple ChoiceWhy has the% O2 increased from the early atmosphere to now?Photosynthesis from algae and plants.Dissolved in oceans.Volcanoes.Respiration from animals.
- 45. Multiple ChoiceCarbon monoxide is...ToxicCorrosive
- 46. Multiple ChoiceComplete combustion: Fuel + Oxygen -->Carbon dioxide + waterCarbon monoxide + water + carbon (soot/ particulates)Carbon + waterCarbon + hydrogen
- 47. Multiple ChoiceIncomplete combustion: Fuel + Oxygen -->Carbon dioxide + waterCarbon monoxide + water + carbon (soot/ particulates)Carbon onlyCarbon + hydrogen
- 48. Multiple ChoiceWhat pollutants cause acid rain?Oxygen and water.Sulfur dioxide and nitrogen.Sulfur dioxide and nitrogen oxides.
- 49. Multiple ChoiceWhy are thermosetting polymers hard and rigid?They have strong covalent cross-links between chains.They have strong metallic bonds between chains.They have strong ionic bonds between chains.
- 50. Multiple ChoiceWhat is a finite resource?One that can be recycled once it has been used.One that can not be replaced once it has been used.One that can be reused.
- 51. Multiple ChoiceWhich is NOT included in the 3 Rs?refreshreuserecyclereduce
- 52. Multiple ChoiceWhich is NOT part of the life cycle assessment, LCA?Buying the product.Getting the raw materials.Manufacturing and packaging.Using and disposing of the product.
- 53. Multiple ChoiceWhat does 'potable' water mean?Water that is the pure element.Water containing no microbes.Water that is safe to drink. Can contain low levels of dissolved salts and microbes.Water that is not safe to drink. High levels of dissolved salts and microbes.
- 54. Multiple ChoiceWhat treatments do we NOT do to make fresh water potable water?SterilisationFiltrationCrystallisation
- 55. Multiple ChoiceWhat are the 2 methods we use to desalinate seawater to make it potable?Distillation. Reverse osmosis.Filtration. Reverse osmosis.Distillation. Filtration.
- 56. Multiple ChoiceName the process: Heat up salt water solution. Water will evaporate and then condense.Filtration.Chromatography.DistillationCrystallisation
- 57. Multiple ChoiceWhat type of water is treated by screening, sedimentation, aerobic digestion & anaerobic digestion.Seawater.Fresh water.Rain water.Wastewater.
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