GCSE Chemistry – Salt equations

Last updated: 13/04/2020

WJEC GCSE Science – Double science higher Acids, bases and salts GCSE Chemistry – Salt equations

Learning Objectives

-I can use the general equation to give the products from a reaction
-I can determine the formula of a salt from common ions

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Question 1 of 28

1. Question
What is the definition of a salt?
- A compound formed when a hydrogen atom in an acid has been replaced with a metal ion
- A compound formed when an oxygen atom in an acid has been replaced with a non-metal ion
- A compound formed when a hydrogen atom in an acid has been replaced with a non-metal ion
- A compound formed when an oxygen atom in an acid has been replaced with a metal ion
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Question 2 of 28

2. Question
What is the definition of a neutralisation reaction?
- A reaction between an acid and an alkali
- A reaction that involves an acid
- A reaction that involves a base
- A reaction that produces a salt
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Question 3 of 28

3. Question
Write the general equation for the reaction between a metal and an acid.
- metal + acid -> salt + hydrogen
- metal + acid -> salt + water
- metal + acid -> oxide + water
- metal + acid -> oxide + hydrogen
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Question 4 of 28

4. Question
What is formed from the reaction between a metal and an acid?
- Salt
- Alkali
- Oxide
- Hydroxide
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Question 5 of 28

5. Question
What is formed from the reaction between a metal and an acid?
- Hydrogen
- Carbon dioxide
- Water
- Oxygen
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Question 6 of 28

6. Question
Write the general equation for the reaction between an alkali and an acid.
- alkali + acid -> salt + water
- alkali + acid -> oxide + oxygen
- alkali + acid -> oxide + water
- alkali + acid -> salt + oxygen
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Question 7 of 28

7. Question
What is formed from the reaction between an acid and an alkali?
- Salt
- Base
- Hydroxide
- Oxide
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Question 8 of 28

8. Question
What is formed from the reaction between an acid and an alkali?
- Water
- Hydrogen
- Carbon dioxide
- Oxygen
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Question 9 of 28

9. Question
Write the general equation for the reaction between a carbonate and an acid.
- carbonate + acid -> salt + water + carbon dioxide
- carbonate + acid -> oxide + water + carbon dioxide
- carbonate + acid -> salt + carbon dioxide
- carbonate + acid -> salt + water
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Question 10 of 28

10. Question
What is formed from the reaction between a carbonate and an acid?
- Salt
- Base
- Hydroxide
- Oxide
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Question 11 of 28

11. Question
What is formed from the reaction between a carbonate and an acid?
- Carbon dioxide
- Hydrogen
- Oxygen
- Carbon monoxide
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Question 12 of 28

12. Question
What is formed from the reaction between a carbonate and an acid?
- Water
- Hydrogen
- Oxygen
- Carbon monoxide
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Question 13 of 28

13. Question
Write the general equation for the reaction between a base and an acid.
- base + acid -> salt + water
- base + acid -> salt + oxygen
- base + acid -> oxide + water
- base + acid -> oxide + oxygen
Correct

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Question 14 of 28

14. Question
What type of reaction is the reaction between an acid and a base?
- Neutralisation
- Displacement
- Thermal decomposition
- Hydrolysis
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Question 15 of 28

15. Question
What is formed from the reaction between an acid and a base?
- Salt
- Alkali
- Hydroxide
- Oxide
Correct

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Question 16 of 28

16. Question
What is formed from the reaction between an acid and a base?
- Water
- Hydrogen
- Carbon dioxide
- Oxygen
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Question 17 of 28

17. Question
Write a balanced symbol equation for the reaction between magnesium and hydrochloric acid.
- $Mg(s) + 2HCl(aq) -> MgCl_2(aq) + H_2(g)$
- $Mg(s) + 2HCl(aq) -> 2MgCl(aq) + H_2(g)$
- $Mg(s) + 2HCl(aq) -> MgCl_2(aq) + H_2O(g)$
- $Mg(s) + HCl(aq) -> MgCl_2(aq) + H_2(g)$
Correct

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Question 18 of 28

18. Question
Write a balanced symbol equation for the reaction between sodium hydroxide and hydrochloric acid.
- $NaOH(aq) + HCl(aq) -> NaCl(aq) + H_2O(l)$
- $NaOH(aq) + HCl(aq) -> NaCl(aq)$
- $NaOH(aq) + 2HCl(aq) -> NaCl(aq) + H_2(g)$
- $NaOH(aq) + HCl(aq) -> 2NaCl(aq) + H_2(g)$
Correct

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Question 19 of 28

19. Question
Write a balanced symbol equation for the reaction between iron and hydrochloric acid.
- $Fe(s) + 2HCl(aq) -> FeCl_2(aq) + H_2(g)$
- $Fe(s) + 2HCl(aq) -> 2FeCl(aq) + H_2(g)$
- $Fe(s) + 2HCl(aq) -> FeCl_2(aq) + H_2O(g)$
- $Fe(s) + HCl(aq) -> FeCl_2(aq) + H_2(g)$
Correct

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Question 20 of 28

20. Question
Write a balanced symbol equation for the reaction between potassium hydroxide and hydrochloric acid.
- $KOH(aq) + HCl(aq) -> KCl(aq) + H_2O(l)$
- $KOH(aq) + HCl(aq) -> KCl(aq)$
- $KOH(aq) + 2HCl(aq) -> KCl(aq) + H_2(g)$
- $KOH(aq) + HCl(aq) -> 2KCl(aq) + H_2(g)$
Correct

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Question 21 of 28

21. Question
Write a balanced symbol equation for the reaction between calcium and sulfuric acid.
- $Ca(s) + H_2SO_4(aq) -> CaSO_4(aq) + H_2(g)$
- $Ca(s) + H_2SO_4(aq) -> CaSO_4(aq)$
- $Ca(s) + H_2SO_4(aq) -> 2CaSO_4(aq) + H_2(g)$
- $Ca(s) + H_2SO_4(aq) -> CaSO_4(aq) + H_2O(g)$
Correct

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Question 22 of 28

22. Question
Write a balanced symbol equation for the reaction between zinc and hydrochloric acid.
- $Zn(s) + 2HCl(aq) -> ZnCl_2(aq) + H_2(g)$
- $Zn(s) + 2HCl(aq) -> 2ZnCl_2(aq) + H_2(g)$
- $Zn(s) + HCl(aq) -> ZnCl_2(aq) + H_2(g)$
- $Zn(s) + 2HCl(aq) -> ZnCl_2(aq)$
Correct

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Question 23 of 28

23. Question
Write a balanced symbol equation for the reaction between lithium and hydrochloric acid.
- $2Li(s) + 2HCl(aq) -> 2LiCl(aq) + H_2(g)$
- $Li(s) + HCl(aq) -> LiCl(aq) + H_2(g)$
- $Li(s) + HCl(aq) -> LiCl(aq)$
- $Li(s) + 2HCl(aq) -> 2LiCl(aq) + H_2(g)$
Correct

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Question 24 of 28

24. Question
Write a balanced symbol equation for the reaction between copper and sulfuric acid.
- $Cu(s) + H_2SO_4(aq) -> CuSO_4(aq) + H_2(g)$
- $2Cu(s) + H_2SO_4(aq) -> CuSO_4(aq) + H_2(g)$
- $Cu(s) + H_2SO_4(aq) -> 2CuSO_4(aq) + H_2(g)$
- $Cu(s) + H_2SO_4(aq) -> CuSO_4(aq)$
Correct

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Question 25 of 28

25. Question
Write a balanced symbol equation for the reaction between calcium carbonate and hydrochloric acid.
- $CaCO_3(s) + 2HCl(aq) -> CaCl_2(aq) + H_2O(l) + CO_2(g)$
- $CaCO_3(s) + HCl(aq) -> CaCl_2(aq) + H_2O(l) + CO_2(g)$
- $CaCO_3(s) + 2HCl(aq) -> CaCl_2(aq) + H_2O(l)$
- $CaCO_3(s) + 2HCl(aq) -> CaCl_2(aq) + CO_2(g)$
Correct

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Question 26 of 28

26. Question
Write a balanced symbol equation for the reaction between magnesium carbonate and hydrochloric acid.
- $MgCO_3(s) + 2HCl(aq) -> MgCl_2(aq) + H_2O(l) + CO_2(g)$
- $MgCO_3(s) + HCl(aq) -> MgCl_2(aq) + H_2O(l) + CO_2(g)$
- $MgCO_3(s) + 2HCl(aq) -> MgCl_2(aq) + H_2O(l)$
- $MgCO_3(s) + 2HCl(aq) -> MgCl_2(aq) + CO_2(g)$
Correct

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Question 27 of 28

27. Question
Write a balanced symbol equation for the reaction between magnesium oxide and sulfuric acid
- $MgO(s) + H_2SO_4(aq) -> MgSO_4(aq) + H_2O(l)$
- $MgO(s) + 2H_2SO_4(aq) -> 2MgSO_4(aq) + H_2O(l)$
- $MgO(s) + H_2SO_4(aq) -> MgSO_4(aq) + H_2(g)$
- $MgO(s) + H_2SO_4(aq) -> MgSO_4(aq) + 2H_2O(l)$
Correct

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Question 28 of 28

28. Question
Write a balanced symbol equation for the reaction between calcium oxide and sulfuric acid
- $CaO(s) + H_2SO_4(aq) -> CaSO_4(aq) + H_2O(l)$
- $CaO(s) + 2H_2SO_4(aq) -> CaSO_4(aq) + H_2O(l)$
- $CaO(s) + H_2SO_4(aq) -> CaSO_4(aq)$
- $CaO(s) + H_2SO_4(aq) -> CaSO_4(aq) + H_2(g)$
Correct

Incorrect