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Part 2b Symbol Equation Question Answers

for the reactions of acids with metals, oxides, hydroxides and carbonates and hydrogen carbonates in KS4 science GCSE/IGCSE CHEMISTRY courses

Spelling note: sulphuric acid = sulfuric acid, sulphate = sulfate, aluminium = aluminum (US)

1. Mg_(s) + 2HCl_(aq) ===> MgCl_2(aq) + H_2(g)

2. ZnO_(s) + H₂SO_4(aq) ===> ZnSO_4(aq) + H₂O_(l)

3. CaO_(s) + 2HNO_3(aq) ===> Ca(NO₃)_2(aq) + H₂O_(l)

4. CuCO_3(s) + H₂SO_4(aq) ===> CuSO_4(aq) + H₂O_(l) + CO_2(g)

5. Ca(OH)_2(s) + 2HCl_(aq) ===> CaCl_2(aq) + 2H₂O_(l)

6. Zn_(s) + H₂SO_4(aq) ===> ZnSO_4(aq) + H_2(g)

7. NH_3(aq) + HNO_3(aq) ===> NH₄NO_3(aq)

8. CuO_(s) + 2HCl_(aq) ===> CuCl_2(aq) + H₂O_(l)

9. MgCO_3(s) + 2HCl_(aq) ===> MgCl_2(aq) + H₂O_(l) + CO_2(g)

10. Mg(OH)_2(s) + H₂SO_4(aq) ===> MgSO_4(aq) + 2H₂O_(l)

12. Zn_(s) + 2HCl_(aq) ===> ZnCl_2(aq) + H_2(g)

13. MgO_(s) + H₂SO_4(aq) ===> MgSO_4(aq) + H₂O_(l)

14. MgCO_3(s) + H₂SO_4(aq) ===>MgSO_4(aq) + H₂O_(l) + CO_2(g)

15. Zn(OH)_2(s) + 2HCl_(aq) ===> ZnCl_2(aq) + 2H₂O_(l)

16. Mg_(s) + H₂SO_4(aq) ===> MgSO_4(aq) + H_2(g)

17. ZnO_(s) + 2HCl_(aq) ===> ZnCl_2(aq) + H₂O_(l)

18. CuCO_3(s) + 2HCl_(aq) ===> CuCl_2(aq) + H₂O_(l) + CO_2(g)

19. Ca(OH)_2(s) + H₂SO_4(aq) ===> CaSO_4(aq) + 2H₂O_(l)

20. 2Al_(s) + 6HCl_(aq) ===> 2AlCl_3(aq) + 3H_2(g)

21. CuO_(s) + H₂SO_4(aq) ===> CuSO_4(aq) + H₂O_(l)

22. ZnCO_3(s) + H₂SO_4(aq) ===> ZnSO_4(aq)+ H₂O_(l) + CO_2(g) 

23. Mg_(s) + 2HNO_3(aq) ===> Mg(NO₃)_2(aq) + H_2(g)

24. NaOH_(aq) + HCl_(aq) ===> NaCl_(aq) + H₂O_(l)

25. 2Al_(s) + 3H₂SO_4(aq) ===> Al₂(SO₄)_3(aq) +  3H_2(g)

26. MgO_(s) + 2HCl_(aq) ===> MgCl_2(aq) + H₂O_(l)

27. Na₂CO_3(aq) + 2HCl_(aq) ===> 2NaCl_(aq) + H₂O_(l) + CO_2(g)

28. 2NaOH_(aq) + H₂SO_4(aq) ===> Na₂SO_4(aq) + 2H₂O_(l)

29. Fe_(s) + 2HCl_(aq) ===> FeCl_2(aq) + H_2(g)

30. Fe_(s) + H₂SO_4(aq) ===> FeSO_4(aq) + H_2(g)

31. NH_3(aq) + HNO_3(aq) ===> NH₄NO_3(aq)

32. Na₂CO_3(aq) + H₂SO_4(aq) ===> Na₂SO_4(aq) + H₂O_(l) + CO_2(g)

33. Zn(OH)_2(s) + 2HCl_(aq) ===> ZnCl_2(aq) + 2H₂O_(l)

34. Mg(OH)_2(s) + 2HCl_(aq) ===> MgCl_2(aq) + 2H₂O_(l)

35. ZnCO_3(s) + 2HCl_(aq) ===> ZnCl_2(aq)+ H₂O_(l) + CO_2(g)

36. NaHCO_3(s) + HCl_(aq) ===> NaCl_(aq) + H₂O_(l) + CO_2(g)

37. NH_3(aq) + HCl_(aq) ===> NH₄Cl_(aq)

38. 2NH_3(aq) + H₂SO_4(aq) ===> (NH₄)₂SO_4(aq)

39. 2CH₃COOH + Ca ===> (CH₃COO)₂Ca + H₂

40. CaCO₃ + 2CH₃COOH ===> (CH₃COO)₂Ca + H₂O + CO₂ 

41. NaOH + CH₃COOH ===> CH₃COONa + H₂O

42. Mg(OH)₂ + 2CH₃COOH ===> (CH₃COO)₂Mg + 2H₂O

Original Symbol Equation Questions

Equations are an important part of the 'language' of chemistry and will form part of many chemistry lessons planned by your teacher, so get used to them and know how to write them as an important part of revising for KS4 Science-CHEMISTRY examinations.

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