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GCSE AQA Chemistry Paper 2
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Question 1 of 71Question 1[1 mark]
[question number = 01.2] Alkanes all have the same general formula. What is that formula?
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Question 2 of 71Question 2[1 mark]
[question number = 01.4] Which descriptions are accurate about saturated and unsaturated hydrocarbons?
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Question 3 of 71Question 3[1 mark]
[question number = 01.7] 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 4 of 71Question 4[1 mark]
[question number = 01.8] Hydrocarbons are compounds that contain which two elements only?
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Question 5 of 71Question 5[1 mark]
[question number = 01.9] Why is bitumen not a good fuel?
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Question 6 of 71Question 6[1 mark]
Which of these reasons explains why temperature affects rate of reaction?
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Question 7 of 71Question 7[1 mark]
Increasing the concentration of solutions increases the rate of reaction, why is this the case?
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Question 8 of 71Question 8[1 mark]
Which of the following symbols is used to represent a reversible reaction?
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Question 9 of 71Question 9[3 marks]
[question number = 02.6] Which of the following are conditions that are used during the Haber process?
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Question 10 of 71Question 10[1 mark]
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 11 of 71Question 11[1 mark]
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 12 of 71Question 12[1 mark]
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 13 of 71Question 13[1 mark]
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 14 of 71Question 14[3 marks]
[question number = 02.8] 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 15 of 71Question 15[1 mark]
[question number = 03.1] 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 16 of 71Question 16[1 mark]
Can Rf values be higher than 1?
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Question 17 of 71Question 17[1 mark]
[question number = 03.2] 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 18 of 71Question 18[1 mark]
[question number = 03.3] What is the equation for Rf values in paper chromatography?
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Question 19 of 71Question 19[1 mark]
[question number = 03.4] Which of the following are uses for paper chromatography?
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Question 20 of 71Question 20[1 mark]
[question number = 03.5] 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 21 of 71Question 21[4 marks]
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 22 of 71Question 22[1 mark]
Which of the following are effects of climate change?
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Question 23 of 71Question 23[4 marks]
[question number = 04.1] Which steps can we take to reduce the impact of climate change on humanity or prevent further climate change?
Correct 4 / 4 PointsIncorrect / 4 Points -
Question 24 of 71Question 24[2 marks]
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 25 of 71Question 25[2 marks]
[question number = 04.3] Why do historical measurements by humans of global temperature have some uncertainty?
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Question 26 of 71Question 26[1 mark]
[question number = 05.2] Why is carbon monoxide produced during incomplete combustion?
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Question 27 of 71Question 27[1 mark]
Why does burning of fuel inside an internal combustion engine lead to the production of oxides of nitrogen?
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Question 28 of 71Question 28[2 marks]
[question number = 05.3] Which of the following are causes of acid rain?
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Question 29 of 71Question 29[1 mark]
Which of the following are negative effects of acid rain?
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Question 30 of 71Question 30[2 marks]
[question number = 06.1] Which of the following points are advantages of recycling?
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Question 31 of 71Question 31[1 mark]
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 32 of 71Question 32[1 mark]
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 33 of 71Question 33[4 marks]
[question number = 06.3] 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 34 of 71Question 34[1 mark]
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 35 of 71Question 35[1 mark]
How could we accurately monitor the rate of a reaction?
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Question 36 of 71Question 36[1 mark]
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 37 of 71Question 37[6 marks]
[question number = 02.4] 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 -
Question 38 of 71Question 38[1 mark]
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 39 of 71Question 39[1 mark]
Surface area to volume ratio affects rate of reaction. Why is that the case?
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Question 40 of 71Question 40[2 marks]
[question number = 02.5] Ammonia is produced as a reversible reaction between which elements?
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Question 41 of 71Question 41[1 mark]
Can the process used to obtain ammonia achieve dynamic equilibrium?
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Question 42 of 71Question 42[4 marks]
[question number = 02.7] 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 43 of 71Question 43[2 marks]
[question number = 01.1] Select the accurate statements about alkanes.
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Question 44 of 71Question 44[1 mark]
Carbonates react with dilute acids to produce which gas?
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Question 45 of 71Question 45[1 mark]
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 46 of 71Question 46[1 mark]
Sulfate ions in solution produce a white precipitate with barium chloride solution in the presence of which acid?
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Question 47 of 71Question 47[1 mark]
What flame colour is produced by calcium compounds in a flame test?
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Question 48 of 71Question 48[1 mark]
What flame colour is produced by lithium compounds in a flame test?
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Question 49 of 71Question 49[1 mark]
What flame colour is produced by sodium compounds in a flame test?
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Question 50 of 71Question 50[1 mark]
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 51 of 71Question 51[1 mark]
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 52 of 71Question 52[1 mark]
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 53 of 71Question 53[1 mark]
Arrange the following materials in order of use during NPK fertiliser production.
- Phosphate rock
- Ammonia
- Nitric acid
View Answers:
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Question 54 of 71Question 54[1 mark]
Match each raw material with its source for the Haber process.
- Air
- Nitrogen-based fertilisers
- Nitrogen
- Ammonia
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Question 55 of 71Question 55[1 mark]
Select all statements that are true about dynamic equilibrium in the Haber process.
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Question 56 of 71Question 56[1 mark]
What is the optimum temperature used in the Haber process?
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Question 57 of 71Question 57[1 mark]
Which of the following best describes the reaction in the Haber process?
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Question 58 of 71Question 58[1 mark]
Which of the following is the balanced chemical equation for the Haber process?
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Question 59 of 71Question 59[1 mark]
Which pair of components are necessary to create ammonium nitrate, a component of NPK fertilisers?
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Question 60 of 71Question 60[1 mark]
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 61 of 71Question 61[1 mark]
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 62 of 71Question 62[1 mark]
Identify the property of thermosetting polymers.
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Question 63 of 71Question 63[1 mark]
Select all correct statements about clay ceramics.
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Question 64 of 71Question 64[1 mark]
What material is made by heating a mixture of sand, sodium carbonate, and limestone?
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Question 65 of 71Question 65[1 mark]
Select all correct statements about high carbon steel.
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Question 66 of 71Question 66[1 mark]
What is bronze made of?
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Question 67 of 71Question 67[1 mark]
Explain sacrificial protection in terms of metal reactivity.
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Question 68 of 71Question 68[1 mark]
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 69 of 71Question 69[1 mark]
Complete the equation: H₂SO₄(aq) + ZnO(s) → …. + H₂O (l)
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Question 70 of 71Question 70[1 mark]
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 71 of 71Question 71[3 marks]
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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