Neutralisation and making salts: Edexcel GCSE Chemistry questions

Every Edexcel GCSE Chemistry exam question on Neutralisation and making salts (specification points 3.9–3.21), 2018–2025, with its mark scheme and examiner’s report.

All 133 questions on Neutralisation and making salts, as a list

June 2025, Paper 1 Higher, Q3(a)(i) (2 marks): Complete the equation for this reaction, including the missing state symbol. (2) AgNO3(aq) + KCl( ) → AgCl(s) + (aq)
June 2025, Paper 1 Higher, Q3(a)(ii) (1 mark): Give the name of the white precipitate that forms. (1)
June 2025, Paper 1 Higher, Q3(a)(iii) (3 marks): State and explain how the white precipitate can be separated from the reaction mixture. (3)
June 2025, Paper 1 Higher, Q6(a)(i) (1 mark): Which apparatus should be used to heat the malachite and test for carbon dioxide? (1) limewater A malachite heat limewater B malachite heat limewater C malachit
June 2025, Paper 1 Higher, Q6(a)(ii) (1 mark): When carbon dioxide is bubbled through limewater, a precipitate forms. This precipitate solid makes the limewater cloudy. Name the precipitate that makes the li
June 2025, Paper 1 Higher, Q8(a) (1 mark): A student adds magnesium sulfate to water to form a solution. Which of these will also form a solution when added to water? (1) A barium sulfate B calcium sulfa
June 2025, Paper 1 Foundation, Q1(a) (1 mark): What is the name of the piece of apparatus labelled G in Figure 1? (1) A testing tube B heating tube C delivery tube D boiling tube
June 2025, Paper 1 Foundation, Q1(b) (1 mark): State what apparatus should be used to heat the zinc carbonate in Figure 1. (1)
June 2025, Paper 1 Foundation, Q1(c) (1 mark): The word equation for the reaction that occurs when zinc carbonate is heated is zinc carbonate → zinc oxide + carbon dioxide The carbon dioxide bubbles through
June 2025, Paper 1 Foundation, Q4(b)(ii) (1 mark): The bubbles that form are hydrogen. Which row of the table shows the test and result that confirm the gas is hydrogen? (1) test result A put a glowing splint in
June 2024, Paper 1 Higher, Q2(a)(i) (1 mark): Complete the balanced equation for the reaction by adding a number in front of HCl(aq). (1) Ba(OH)2(s) + HCl(aq) → BaCl2(aq) + 2H2O(l)
June 2024, Paper 1 Higher, Q2(a)(ii) (1 mark): State what you would see during the reaction. (1)
June 2024, Paper 1 Higher, Q2(b)(ii) (2 marks): Explain why, in step 3, the mixture was stirred after adding the barium hydroxide. (2)
June 2024, Paper 1 Higher, Q2(b)(iii) (3 marks): Figure 3 shows the student’s results. number of spatula measures pH of mixture of barium hydroxide 0 1 1 1 2 1 3 1 4 3 5 8 6 12 7 13 8 13 Figure 3 Plot a graph
June 2024, Paper 1 Higher, Q2(b)(iv) (1 mark): Use the graph to find the pH of the mixture when 4.5 spatula measures of barium hydroxide are added. (1) pH of the mixture =
June 2024, Paper 1 Higher, Q6(b)(ii) (2 marks): Write the ionic equation for the neutralisation reaction that occurs when hydrochloric acid is added to barium hydroxide solution. (2)
June 2024, Paper 1 Higher, Q6(c) (3 marks): When barium hydroxide solution is neutralised by dilute sulfuric acid, a white precipitate of barium sulfate is formed in the conical flask. Describe an experim
June 2024, Paper 1 Foundation, Q2(b)(i) (2 marks): Write the word equation for this reaction. (2) + →
June 2024, Paper 1 Foundation, Q4(d)(i) (2 marks): Write the balanced equation for the reaction. (2) + → +
June 2024, Paper 1 Foundation, Q4(d)(ii) (1 mark): State the name of this type of reaction. (1)
June 2024, Paper 1 Foundation, Q6(b) (4 marks): Sodium hydroxide solution and copper sulfate solution were reacted together completely. The result was a mixture of a precipitate of copper hydroxide in a solut
June 2024, Paper 1 Foundation, Q8(a)(i) (1 mark): Complete the balanced equation for the reaction by adding a number in front of HCl(aq). (1) Ba(OH)2(s) + HCl(aq) → BaCl2(aq) + 2H2O(l)
June 2024, Paper 1 Foundation, Q8(a)(ii) (1 mark): State what you would see during the reaction. (1)
June 2024, Paper 1 Foundation, Q8(b)(ii) (2 marks): Explain why, in step 3, the mixture was stirred after adding the barium hydroxide. (2)
June 2024, Paper 1 Foundation, Q8(b)(iii) (3 marks): Figure 13 shows the student’s results. number of spatula measures pH of mixture of barium hydroxide 0 1 1 1 2 1 3 1 4 3 5 8 6 12 7 13 8 13 Figure 13 Plot a grap
June 2024, Paper 1 Foundation, Q8(b)(iv) (1 mark): Use the graph to find the pH of the mixture when 4.5 spatula measures of barium hydroxide are added. (1) pH of the mixture =
June 2024, Paper 1 Foundation, Q8(c) (1 mark): Figure 14 shows a hazard symbol on the container of barium hydroxide. Figure 14 What is the meaning of the hazard symbol in Figure 14? (1) A corrosive B health
June 2024, Paper 1 Foundation, Q8(d) (1 mark): The barium hydroxide was measured in spatulas. State one way that the measuring of the barium hydroxide could be improved. (1)
June 2024, Paper 1 Foundation, Q9(c) (6 marks): A student has three solids, A, B and C. The solids are sodium carbonate, powdered zinc and copper oxide, but the student does not know which solid is which. The
June 2024, Paper 2 Foundation, Q5(c) (3 marks): When some impure hydrocarbon fuels are burned, sulfur dioxide is one of the products. Some sulfur dioxide gas is dissolved in water to form solution W. When sol
June 2024, Paper 2 Foundation, Q6(b)(ii) (1 mark): Hydrogen bromide dissolves in water to form a solution. This solution of hydrogen bromide reacts with alkalis. State the type of reaction that occurs when a sol
June 2023, Paper 1 Higher, Q2(a) (1 mark): State what should be done after step 2 to make sure that any reaction is complete. (1)
June 2023, Paper 1 Higher, Q2(b) (2 marks): Complete the word equation for the reaction. (2) calcium hydroxide + hydrochloric acid →
June 2023, Paper 1 Higher, Q2(c) (1 mark): Which row of the table shows the state symbols for powdered calcium hydroxide and dilute hydrochloric acid in the balanced chemical equation? (1) calcium hydrox
June 2023, Paper 1 Higher, Q2(d)(ii) (1 mark): Using Figure 4, give the mass of calcium hydroxide required to make a neutral mixture. (1) mass of calcium hydroxide = g
June 2023, Paper 1 Higher, Q3(b)(ii) (2 marks): When metals react with acids, hydrogen gas is produced. Describe the test to show that the gas is hydrogen. (2)
June 2023, Paper 1 Higher, Q3(b)(iii) (2 marks): When magnesium reacts with hydrochloric acid, magnesium chloride and hydrogen are formed. Complete the balanced equation for the reaction. (2) Mg + HCl → MgCl2
June 2023, Paper 1 Higher, Q7(a)(i) (2 marks): State the name of the two reactants that are neutralised to make the salt ammonium nitrate. (2) and
June 2023, Paper 1 Higher, Q8(a) (1 mark): Name the other product of this reaction. (1)
June 2023, Paper 1 Higher, Q8(b) (3 marks): During the experiment, a spatula measure of copper oxide, a black powder, is added to warm, dilute sulfuric acid in a beaker. When the mixture is stirred, the b
June 2023, Paper 1 Higher, Q8(c) (1 mark): The reaction produces an aqueous solution of copper sulfate. What is the best way to obtain crystals of copper sulfate from an aqueous solution? (1) A pour the
June 2023, Paper 1 Foundation, Q5(a)(i) (1 mark): Complete the word equation for this reaction. (1) lead nitrate + → + lead chloride
June 2023, Paper 1 Foundation, Q5(a)(ii) (1 mark): Lead nitrate is toxic. Which hazard symbol should be on a container of lead nitrate? (1) A B C D
June 2023, Paper 1 Foundation, Q5(b)(i) (1 mark): Give the name of the piece of apparatus the student should use to find the volume of the potassium carbonate solution. (1)
June 2023, Paper 1 Foundation, Q5(b)(ii) (2 marks): The student repeated the experiment. The results are shown in Figure 8. height of precipitate experiment in cm 1 2.4 2 2.7 3 2.4 Figure 8 Use the data in Figure
June 2023, Paper 1 Foundation, Q5(b)(iii) (3 marks): Describe how a pure, dry sample of the precipitate could be obtained from the mixture in the test tube. (3)
June 2023, Paper 1 Foundation, Q5(b)(iv) (1 mark): The student investigated whether increasing the volume of calcium nitrate solution increased the height of the precipitate formed. They repeated the experiment
June 2023, Paper 1 Foundation, Q7(a)(ii) (1 mark): Ammonium nitrate, NH4NO3, is prepared for use in fertilisers by neutralising ammonia with an acid. Which acid reacts with ammonia to produce ammonium nitrate? (
June 2023, Paper 1 Foundation, Q7(b)(i) (2 marks): Write the word equation for the reaction between ammonia and sulfuric acid. (2)
June 2023, Paper 1 Foundation, Q8(a) (1 mark): State what should be done after step 2 to make sure that any reaction is complete. (1)
June 2023, Paper 1 Foundation, Q8(b) (2 marks): Complete the word equation for the reaction. (2) calcium hydroxide + hydrochloric acid →
June 2023, Paper 1 Foundation, Q8(c) (1 mark): Which row of the table shows the state symbols for powdered calcium hydroxide and dilute hydrochloric acid in the balanced chemical equation? (1) calcium hydrox
June 2023, Paper 1 Foundation, Q8(d)(ii) (1 mark): Using Figure 12, give the mass of calcium hydroxide required to make a neutral mixture. (1) mass of calcium hydroxide = g
June 2023, Paper 1 Foundation, Q8(f) (1 mark): The calcium hydroxide used is corrosive to the eyes and an irritant to skin. Using this information, state one safety precaution that should be taken during the
June 2023, Paper 1 Foundation, Q9(b)(ii) (2 marks): When metals react with acids, hydrogen gas is produced. Describe the test to show that the gas is hydrogen. (2)
June 2023, Paper 1 Foundation, Q9(b)(iii) (2 marks): When magnesium reacts with hydrochloric acid, magnesium chloride and hydrogen are formed. Complete the balanced equation for the reaction. (2) Mg + HCl → MgCl2
June 2022, Paper 1 Higher, Q2(a) (1 mark): The equation for the reaction is Ba(OH)2(s) + 2HCl(aq) → BaCl2(aq) + 2H2O(l) Which row of the table shows the correct state of each of the substances in the equ
June 2022, Paper 1 Higher, Q2(b)(i) (1 mark): Name a piece of equipment which could be used to measure out 50.0 cm3 of dilute hydrochloric acid more accurately than the measuring cylinder. (1)
June 2022, Paper 1 Higher, Q2(b)(iv) (3 marks): Figure 2 shows the student’s results. mass of barium hydroxide in g pH of mixture 0.0 1 0.2 1 0.4 1 0.6 1 0.8 2 1.0 7 1.2 12 1.4 13 1.6 13 Figure 2 On the grid
June 2022, Paper 1 Higher, Q3(c) (1 mark): Magnesium carbonate reacts with dilute hydrochloric acid. Water and carbon dioxide are two of the products of the reaction. Complete the balanced equation for t
June 2022, Paper 1 Higher, Q7(b) (2 marks): When the ammonia solution was neutralised by the dilute sulfuric acid, a solution of ammonium sulfate was formed. Complete the balanced equation for the reactio
June 2022, Paper 1 Foundation, Q1(c) (2 marks): Ammonia reacts with nitric acid to produce ammonium nitrate. Write the word equation for this reaction. (2) + →
June 2022, Paper 1 Foundation, Q4(e) (3 marks): During the titration the dilute hydrochloric acid, HCl, is reacting with the lithium hydroxide solution, LiOH. Explain what type of reaction is taking place in
June 2022, Paper 1 Foundation, Q6(b)(i) (1 mark): State what would be seen in the reaction. (1)
June 2022, Paper 1 Foundation, Q6(b)(iii) (3 marks): Describe how to obtain a pure, dry sample of the precipitate of copper hydroxide from the reaction mixture. (3)
June 2022, Paper 1 Foundation, Q8(a) (1 mark): The equation for the reaction is Ba(OH)2(s) + 2HCl(aq) → BaCl2(aq) + 2H2O(l) Which row of the table shows the correct state of each of the substances in the equ
June 2022, Paper 1 Foundation, Q8(b)(i) (1 mark): Name a piece of equipment which could be used to measure out 50.0 cm3 of dilute hydrochloric acid more accurately than the measuring cylinder. (1)
June 2022, Paper 1 Foundation, Q8(b)(iv) (3 marks): Figure 14 shows the student’s results. mass of barium hydroxide in g pH of mixture 0.0 1 0.2 1 0.4 1 0.6 1 0.8 2 1.0 7 1.2 12 1.4 13 1.6 13 Figure 14 On the gri
June 2022, Paper 1 Foundation, Q8(c)(i) (1 mark): What is the meaning of the hazard symbol in Figure 15? (1) A flammable B health hazard C oxidising D toxic
June 2022, Paper 1 Foundation, Q8(c)(ii) (1 mark): Barium hydroxide is also corrosive. Give one precaution that the student should take when using barium hydroxide. (1)
June 2022, Paper 1 Foundation, Q9(c) (6 marks): A student has two separate test tubes containing sulfuric acid. The student adds a spatula measure of magnesium carbonate, MgCO3, to the first test tube and a p
November 2021, Paper 1 Higher, Q2(c)(iii) (1 mark): An acid reacts with an alkali. Give the name of this type of reaction. (1)
November 2021, Paper 1 Higher, Q6(a)(i) (1 mark): During the reaction the copper carbonate powder completely disappears. State what can be deduced about the amount of acid used. (1)
November 2021, Paper 1 Higher, Q6(b) (2 marks): Using different reactants, a solution of copper sulfate was prepared. Describe what should be done to obtain copper sulfate crystals from this copper sulfate so
November 2021, Paper 1 Foundation, Q1(b)(iii) (2 marks): The titration experiment is used to produce a solution of ammonium sulfate. Describe how solid ammonium sulfate should be obtained from this solution. (2)
November 2021, Paper 1 Foundation, Q4(b)(ii) (1 mark): Hydrogen is given off when magnesium reacts with acid. The hydrogen is tested by collecting the gas in a test tube and igniting it. What is the safest way to ig
November 2021, Paper 1 Foundation, Q4(b)(iii) (1 mark): State the observation made in this test that shows that the gas is hydrogen. (1)
November 2021, Paper 1 Foundation, Q6(a)(i) (1 mark): Give a safety precaution that should be taken during the experiment. (1)
November 2021, Paper 1 Foundation, Q6(a)(ii) (1 mark): Give an improvement to step 4 that would produce more accurate results. (1)
November 2021, Paper 1 Foundation, Q8(c)(iii) (1 mark): An acid reacts with an alkali. Give the name of this type of reaction. (1)
November 2021, Paper 1 Foundation, Q8(c)(iv) (2 marks): Describe what you would see when some copper carbonate powder is added to a beaker of dilute sulfuric acid. (2)
November 2021, Paper 2 Higher, Q5(c)(i) (2 marks): Describe the test to show that a gas is oxygen. (2)
November 2020, Paper 1 Higher, Q3(a)(i) (2 marks): Complete the balanced equation for this reaction. (2) CuCO3 + → + CO2 + H2O
November 2020, Paper 1 Higher, Q3(a)(iii) (1 mark): What is the chemical test to show that a gas is carbon dioxide? (1) A bubble the gas through limewater, limewater turns cloudy B put damp blue litmus paper in t
November 2020, Paper 1 Higher, Q3(b) (2 marks): Figure 4 shows a conical flask containing dilute sulfuric acid. Copper carbonate is added to the acid in the flask. The copper carbonate is added one spatula me
November 2020, Paper 1 Higher, Q4(b)(i) (2 marks): Explain why this new mixture was evaporated rather than the original mixture from the titration, to produce a pure sample of solid potassium chloride. (2)
November 2020, Paper 1 Higher, Q9(b) (3 marks): Magnesium oxide reacts with dilute hydrochloric acid to produce magnesium chloride solution and water. MgO(s) + 2HCl(aq) → MgCl2(aq) + H2O(l) Write the ionic eq
November 2020, Paper 1 Higher, Q9(c)(ii) (4 marks): State and explain how the pH changes as the magnesium hydroxide is added to the dilute hydrochloric acid. (4)
November 2020, Paper 1 Higher, Q10(b)(ii) (2 marks): Ammonium nitrate can be made by the reaction of ammonia with nitric acid. Write the balanced equation for this reaction. (2)
November 2020, Paper 1 Foundation, Q1(b)(i) (2 marks): Write the word equation for this reaction. (2) →
November 2020, Paper 1 Foundation, Q3(c)(i) (1 mark): A fertiliser is made by reacting ammonia with nitric acid. What is the name of this fertiliser? (1) A ammonia nitrate B ammonia nitric C ammonium nitrate D ammo
November 2020, Paper 1 Foundation, Q4(b)(i) (1 mark): State the name of the salt formed. (1)
November 2020, Paper 1 Foundation, Q4(b)(ii) (1 mark): In this reaction aluminium oxide is a base. State the type of reaction that takes place when an acid reacts with a base. (1)
November 2020, Paper 1 Foundation, Q9(a)(i) (2 marks): Complete the balanced equation for this reaction. (2) CuCO3 + → + CO2 + H2O
November 2020, Paper 1 Foundation, Q9(a)(iii) (1 mark): What is the chemical test to show that a gas is carbon dioxide? (1) A bubble the gas through limewater, limewater turns cloudy B put damp blue litmus paper in t
November 2020, Paper 1 Foundation, Q9(b)(i) (2 marks): State two observations that would show the reaction has finished. (2) 1 2
November 2020, Paper 1 Foundation, Q9(b)(ii) (6 marks): Describe how you would obtain a solution of copper sulfate from the mixture and how you would obtain pure, dry copper sulfate crystals from this solution. Your
November 2020, Paper 1 Foundation, Q10(b)(i) (2 marks): Explain why this new mixture was evaporated rather than the original mixture from the titration, to produce a pure sample of solid potassium chloride. (2)
November 2020, Paper 2 Foundation, Q3(a)(i) (2 marks): Solutions of potassium iodide and lead nitrate were mixed together. Lead iodide and potassium nitrate were formed. Complete the word equation. (2) + → +
June 2019, Paper 1 Higher, Q9(b)(i) (2 marks): State how you could change the method so that the amounts of dilute hydrochloric acid and of the base can be measured more accurately. (2) dilute hydrochloric a
June 2019, Paper 1 Higher, Q9(c) (6 marks): Some properties of four solids, A, B, C and D, are shown in Figure 6. The solids, in no particular order, are copper carbonate, copper oxide, magnesium metal an
June 2019, Paper 1 Higher, Q10(a)(i) (1 mark): State the type of reaction occurring when nitric acid reacts with ammonia. (1)
June 2019, Paper 1 Higher, Q10(a)(ii) (1 mark): What salt is formed in this reaction? (1) A ammonia nitric B ammonia nitrate C ammonium nitric D ammonium nitrate
June 2019, Paper 1 Foundation, Q5(a)(iv) (2 marks): The magnesium reacts with dilute hydrochloric acid to form magnesium chloride solution and hydrogen gas. The equation for the reaction is Mg(s) + 2HCl(aq) → MgC
June 2019, Paper 1 Foundation, Q5(b)(i) (1 mark): Potassium sulfate contains potassium ions, K*, and sulfate ions, S04 . Write the formula of potassium sulfate. (1)
June 2019, Paper 1 Foundation, Q5(b)(ii) (2 marks): Equal volumes of a solution of potassium carbonate were reacted separately with an excess of dilute sulfuric acid solution. Pure dry samples of potassium sulfat
June 2019, Paper 1 Foundation, Q7(a)(ii) (2 marks): Potassium nitrate is present in some fertilisers. Potassium nitrate is formed by the reaction of potassium hydroxide solution with nitric acid. Complete the bal
June 2019, Paper 1 Foundation, Q9(a)(i) (1 mark): A sample of hydrogen is mixed with air and ignited. State what would happen. (1)
June 2018, Paper 1 Higher, Q2(a)(i) (2 marks): Describe the test to show the gas is hydrogen. (2)
June 2018, Paper 1 Higher, Q2(c) (3 marks): Excess solid nickel carbonate is added to dilute sulfuric acid in a beaker. nickel sulfuric nickel carbon o + + + water carbonate acid sulfate dioxide Nickel su
June 2018, Paper 1 Higher, Q9(c) (2 marks): Acid solutions contain hydrogen ions. Aluminium reacts with dilute hydrochloric acid to form a solution containing 3+. aluminium ions, Al Complete the balanced
June 2018, Paper 1 Foundation, Q1(c)(i) (1 mark): Complete the word equation for this reaction. (1) + →
June 2018, Paper 1 Foundation, Q4(c)(ii) (2 marks): Describe the test to show that a gas is carbon dioxide. (2)
June 2018, Paper 1 Foundation, Q5(a) (1 mark): The hazard symbol shown in Figure 5 is on bottles containing barium metal. Figure 5 State the meaning of this hazard symbol. (1)
June 2018, Paper 1 Foundation, Q5(c) (2 marks): Barium chloride is toxic. Explain one safety precaution that should be taken when using barium chloride. (2)
June 2018, Paper 1 Foundation, Q5(d)(ii) (1 mark): Give the name of the white precipitate formed by the reaction of barium chloride solution with dilute sulfuric acid. (1)
June 2018, Paper 1 Foundation, Q8(b) (1 mark): Acids are used to make salts. Give the name of the acid used to make chlorides. (1)
June 2018, Paper 1 Foundation, Q8(c)(i) (2 marks): Describe the test to show that the gas is hydrogen. (2)
June 2018, Paper 1 Foundation, Q8(e) (3 marks): Excess solid nickel carbonate is added to dilute sulfuric acid in a beaker. nickel sulfuric nickel carbon → + + + water carbonate acid sulfate dioxide Nickel su
Specimen, Paper 1 Higher, Q4(a) (2 marks): Complete Figure 9 by placing one tick in each row to show whether the salt is soluble or insoluble. (2) salt soluble insoluble ammonium chloride lithium sulfate
Specimen, Paper 1 Higher, Q4(c) (4 marks): The method used to make the lead sulfate is: ● pour 100cm3 lead nitrate solution into a beaker ● add drops of sodium sulfate solution until a precipitate is see
Specimen, Paper 1 Higher, Q4(d) (2 marks): Ammonium nitrate is produced from ammonia and nitric acid on a large scale in industry. Ammonium nitrate can also be made in the laboratory by titrating ammonia
Specimen, Paper 1 Higher, Q8(b)(i) (3 marks): Carbon dioxide can be formed by the reaction of calcium carbonate, CaCO3, with dilute hydrochloric acid. Write the balanced equation for this reaction. (3)
Specimen, Paper 1 Higher, Q9(b) (2 marks): The salt zinc nitrate can be made by reacting zinc oxide, ZnO, with dilute nitric acid, HNO3. Write the balanced equation for this reaction. (2)
Specimen, Paper 1 Higher, Q9(d) (6 marks): Salts of metals can be made by reacting one of the metal’s compounds with the appropriate acid. Plan an experiment to prepare pure, dry crystals of magnesium su
Specimen, Paper 1 Foundation, Q2(c)(i) (1 mark): In the first step, 25 cm3 of dilute phosphoric acid was placed in a beaker. Give the name of a piece of apparatus that could be used to measure out the 25 cm3 d
Specimen, Paper 1 Foundation, Q2(c)(ii) (1 mark): Complete the word equation for this reaction. (1) ammonia + →
Specimen, Paper 1 Foundation, Q2(c)(iii) (2 marks): Some ammonium phosphate solution was made. Describe how pure, dry crystals of ammonium phosphate are obtained from the ammonium phosphate solution. (2)
Specimen, Paper 1 Foundation, Q8(c) (2 marks): Write the balanced equation for the reaction of dilute sulfuric acid, H2SO4, with sodium hydroxide. (2)
Specimen, Paper 1 Foundation, Q10(a) (2 marks): Complete Figure 19 by placing one tick in each row to show whether the salt is soluble or insoluble. (2) salt soluble insoluble ammonium chloride lithium sulfat
Specimen, Paper 1 Foundation, Q10(c) (4 marks): The method used to make the lead sulfate is: ● pour 100 cm3 lead nitrate solution into a beaker ● add drops of sodium sulfate solution until a precipitate is se
Specimen, Paper 1 Foundation, Q10(d) (2 marks): Ammonium nitrate is produced from ammonia and nitric acid on a large scale in industry. Ammonium nitrate can also be made in the laboratory by titrating ammonia
Specimen, Paper 2 Higher, Q7(a) (2 marks): Complete and balance the equation for the reaction. (2) CaCO3 + HCl → + +

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