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GCSE AQA Chemistry Paper 2
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Question 1 of 79Question 11 Point
Which of these reasons explains why temperature affects rate of reaction?
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Question 2 of 79Question 21 Point
Increasing the concentration of solutions increases the rate of reaction, why is this the case?
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Question 3 of 79Question 31 Point
Which of the following symbols is used to represent a reversible reaction?
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Question 4 of 79Question 43 Points
Which of the following are conditions that are used during the Haber process?
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Question 5 of 79Question 51 Point
The environment in which a reaction takes place can affect the direction of the equilibrium shift.
Hydrogen reacts with iodine to form hydrogen iodide. Match the change with the correct outcome.
H₂(g) + I₂(g) ⇌ 2HI(g)Fill in the blanks with the following terms:
Right, left
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Match the following changes with the correct outcome:
- Increasing the concentration of H₂ will shift the equilibrium to the .
- Decreasing the pressure of I₂ will shift the equilibrium to the .
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Question 6 of 79Question 61 Point
The environment in which a reaction takes place can affect the direction of the equilibrium shift.
Hydrogen reacts with iodine to form hydrogen iodide. Match the change with the correct outcome.
H₂(g) + I₂(g) ⇌ 2HI(g)- Equilibrium shifts to the right
- Equilibrium shifts to the left
- H₂ is added
- H₂ is removed
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Question 7 of 79Question 71 Point
The environment in which a reaction takes place can affect the direction of the equilibrium shift.
A reaction is exothermic in the forwards direction. Match the change in temperature with the correct outcome.
- Equilibrium shifts to the left
- Equilibrium shifts to the right
- Increasing temperature
- Decreasing temperature
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Question 8 of 79Question 81 Point
There is a dynamic equilibrium formed in the following reaction: nitrogen dioxide ⇌ dinitrogen tetroxide. Which of the following will happen if we add more nitrogen dioxide?
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Question 9 of 79Question 93 Points
Use the following words to fill in the blanks:
Open, closed, active, dynamic, static
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- equilibrium only occurs in systems.
- In an system gases can escape so equilibrium would not be achieved.
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Question 10 of 79Question 101 Point
The following equations show cracking of a long hydrocarbon into a shorter alkane and an alkene. Which equation is correct?
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Question 11 of 79Question 111 Point
Which descriptions are accurate about saturated and unsaturated hydrocarbons?
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Question 12 of 79Question 121 Point
Which of the following is a difference between alkanes and alkenes?
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Question 13 of 79Question 131 Point
Crude oil separated by fractional distillation creates unequal volumes of each fraction e.g. fuel oil. These unequal volumes also do not match the demand for each fraction. What process is carried out to balance out the supply with demand?
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Question 14 of 79Question 141 Point
Alkanes all have the same general formula. What is that formula?
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Question 15 of 79Question 151 Point
Renewable, non-renewable
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Complete the sentence: Methane is a fossil fuel found in natural gas.
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Question 16 of 79Question 161 Point
Hydrocarbons are compounds that contain which two elements only?
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Question 17 of 79Question 171 Point
Hydrocarbons with the longest carbon chains have the highest boiling points. Where are the fractions with the smallest carbon chains removed in a fractionating column?
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Question 18 of 79Question 181 Point
Which of the following statements are correct about crude oil?
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Question 19 of 79Question 191 Point
Which process do we use to separate crude oil into more useful and simpler mixtures?
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Question 20 of 79Question 201 Point
Why is bitumen not a good fuel?
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Question 21 of 79Question 211 Point
Renewable, non-renewable
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Finish the sentence: Petrol, kerosene and diesel oil are fossil fuels obtained from crude oil.
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Question 22 of 79Question 221 Point
A paper chromatography experiment is carried out in a lab. The distance moved by the spot was 6cm and the solvent had moved by 8cm. Calculate the Rf value.
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Question 23 of 79Question 231 Point
Can Rf values be higher than 1?
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Question 24 of 79Question 241 Point
The distance travelled by a spot is determined by the solubility of the compound. How does solubility impact distance travelled?
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Question 25 of 79Question 251 Point
What is the equation for Rf values in paper chromatography?
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Question 26 of 79Question 261 Point
Which of the following are uses for paper chromatography?
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Question 27 of 79Question 271 Point
Drag and drop to match the description to the phase of chromatography
- Mobile phase
- Stationary phase
- The solvent
- The paper
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Question 28 of 79Question 284 Points
Use some of the following words to fill in the blanks.
Earthquakes, volcanism, condensed, rivers, oceans, photosynthesis
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- The development of the early atmosphere was mainly from which released gases from inside the Earth.
- The formation of the oceans happened when water vapour in the atmosphere as the Earth cooled.
- A decrease in CO₂ in the atmosphere occurred as CO₂ dissolved into .
- An increase in O₂ in the atmosphere occurred when organisms started the process of
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Question 29 of 79Question 291 Point
Which of the following are effects of climate change?
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Question 30 of 79Question 301 Point
Which steps can we take to reduce the impact of climate change on humanity or prevent further climate change?
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Question 31 of 79Question 312 Points
Use some of the following words:
Magnetic, volcanic, magnetospheres, detritivore, volcanoes
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On early Earth, there was a lot of activity as the planet was cooling down. We can link this to the formation of the atmosphere by measuring the gases released by and comparing them to the composition of the atmosphere over time
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Question 32 of 79Question 321 Point
Why do historical measurements by humans of global temperature have some uncertainty?
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Question 33 of 79Question 331 Point
Why is carbon and carbon monoxide produced during incomplete combustion?
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Question 34 of 79Question 341 Point
Why does burning of fuel inside an internal combustion engine lead to the production of oxides of nitrogen?
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Question 35 of 79Question 351 Point
Which of the following are causes of acid rain?
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Question 36 of 79Question 361 Point
Which of the following are negative effects of acid rain?
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Question 37 of 79Question 372 Points
Which of the following points are advantages of recycling?
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Question 38 of 79Question 381 Point
Drag and drop to match the advantage and disadvantage of recycling compared to extraction from ores
- Mining ores damages the landscape
- Waste metals can be difficult to sort
- Advantage
- Disadvantage
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Question 39 of 79Question 391 Point
Consider the following hypothetical scenario:
- A company that makes electronic devices needs cobalt.
- The company is also responsible for the disposal of the devices at the end of their useful lives.
- A life-cycle assessment determines that it consumes 10,000 kilojoules per kg to produce cobalt through mining ore and 50,000 kilojoules to produce it from recycling.
- The energy required for disposal is 100,000 kilojoules per kg for mined cobalt and only 50,000 kilojoules per kg for recycled cobalt.
What should the company do?
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Question 40 of 79Question 404 Points
Use some of the following words to fill in the blanks.
Noise, landfill, river, habitats, dust
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Complete the following statements about the advantages of recycling compared to the extraction of metals from ores.
- Mining produces and pollution
- Mining can damage important
- Less waste metal ends up in sites
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Question 41 of 79Question 411 Point
A life-cycle assessment determines that 100,000 kilojoules of energy will be consumed to produce 1kg of magnesium from an ore. Alternatively, it would consume 25,000 kilojoules to extract the same mass of magnesium through recycling. Which method should be used given this information?
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Question 42 of 79Question 421 Point
How could we accurately monitor the rate of a reaction?
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Question 43 of 79Question 431 Point
Drag and drop to match the outcome with the type of reaction
- Exothermic
- Endothermic
- If there is no energy input – reactions continue until reactants run out
- If there is no energy input – reactions stop even if there are reactants left
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Question 44 of 79Question 441 Point
Temperature affects the rate of reaction. Which of the following is the correct description of what happens when temperature changes?
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Question 45 of 79Question 451 Point
Surface area to volume ratio affects rate of reaction. Why is that the case?
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Question 46 of 79Question 462 Points
Ammonia is produced as a reversible reaction between which elements?
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Question 47 of 79Question 471 Point
Can the process used to obtain ammonia achieve dynamic equilibrium?
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Question 48 of 79Question 484 Points
Use some of the following words to fill in the blanks:
Hydrogen, nitrogen, oxygen, chlorine, air, natural, artificial, water
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Complete the statements about the elements used in the process to make ammonia:
- is extracted from the .
- is obtained from gas
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Question 49 of 79Question 491 Point
Select the accurate statements about alkanes.
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Question 50 of 79Question 501 Point
Carbonates react with dilute acids to produce which gas?
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Question 51 of 79Question 511 Point
Match each metal ion to the colour of the precipitate formed when sodium hydroxide is added.
- Blue precipitate
- Brown precipitate
- Copper(II) ions
- Iron(III) ions
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Question 52 of 79Question 521 Point
Sulfate ions in solution produce a white precipitate with barium chloride solution in the presence of which acid?
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Question 53 of 79Question 531 Point
What flame colour is produced by calcium compounds in a flame test?
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Question 54 of 79Question 541 Point
What flame colour is produced by lithium compounds in a flame test?
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Question 55 of 79Question 551 Point
What flame colour is produced by sodium compounds in a flame test?
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Question 56 of 79Question 561 Point
What is the colour of the precipitate formed when bromide ions react with silver nitrate solution in the presence of dilute nitric acid?
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Question 57 of 79Question 571 Point
What is the colour of the precipitate formed when iodide ions react with silver nitrate solution in the presence of dilute nitric acid?
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Question 58 of 79Question 581 Point
What is the colour of the precipitate formed when sodium hydroxide is added to a solution containing copper(II) ions?
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Question 59 of 79Question 591 Point
Arrange the following materials in order of use during NPK fertiliser production.
- Nitric acid
- Ammonia
- Phosphate rock
View Answers:
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Question 60 of 79Question 601 Point
Match each raw material with its source for the Haber process.
- Air
- Nitrogen-based fertilisers
- Nitrogen
- Ammonia
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Question 61 of 79Question 611 Point
Select all statements that are true about dynamic equilibrium in the Haber process.
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Question 62 of 79Question 621 Point
What is the optimum temperature used in the Haber process?
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Question 63 of 79Question 631 Point
Which of the following best describes the reaction in the Haber process?
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Question 64 of 79Question 641 Point
Which of the following is the balanced chemical equation for the Haber process?
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Question 65 of 79Question 651 Point
Which pair of components are necessary to create ammonium nitrate, a component of NPK fertilisers?
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Question 66 of 79Question 661 Point
Use some of the following answers to fill in the blanks:
Aluminium, low density, high density, thermosetting-
Aluminium alloys are valued for their properties, making them suitable for lightweight applications.
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Question 67 of 79Question 671 Point
Match each type of polymer with its property.
- Melts when heated
- Produced with a high-pressure process
- Thermosoftening
- Low density poly(ethene)
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Question 68 of 79Question 681 Point
Identify the property of thermosetting polymers.
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Question 69 of 79Question 691 Point
Select all correct statements about clay ceramics.
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Question 70 of 79Question 701 Point
What material is made by heating a mixture of sand, sodium carbonate, and limestone?
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Question 71 of 79Question 711 Point
Select all correct statements about high carbon steel.
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Question 72 of 79Question 721 Point
What is bronze made of?
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Question 73 of 79Question 731 Point
Explain sacrificial protection in terms of metal reactivity.
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Question 74 of 79Question 741 Point
Use some of the following answers to fill in the blanks:
Zinc, iron, copper, bronze-
Galvanising involves coating iron with , a more reactive metal, to prevent rust.
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Question 75 of 79Question 751 Point
Can strong and weak acids have the same pH?
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Question 76 of 79Question 761 Point
Complete the equation: H₂SO₄(aq) + ZnO(s) → …. + H₂O (l)
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Question 77 of 79Question 771 Point
Calculate the mass of 16 moles of hydrochloric acid.
Click the hint to see the formula for hydrochloric acid, you need to remember this as well as other common acids.
CorrectIncorrectHCl is the formula for hydrochloric acid.
Whilst you’re here, here’s the formulae for other important acids you need to remember…
Nitric acid = HNO3
Sulfuric acid = H₂SO₄
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Question 78 of 79Question 783 Points
Calculate the concentration in g/dm³ of a hydrochloric acid solution if 50.0 cm³ reacts completely with 25.0 cm³ of 0.100 mol/dm³ sodium hydroxide.
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Concentration of HCl = g/dm³
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Question 79 of 79Question 796 Points
A student investigated the rate of gas production when different concentrations of sodium thiosulfate react with hydrochloric acid to produce sulfur dioxide.
Describe a method the student could use to measure the rate of reaction. (enter your answer)
You should include:
- how to set up the apparatus and the materials you would use
- the measurements you would make
- how you would control other variables
Correct 6 / 6 PointsIncorrect / 6 Points
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