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Chemical Symbol Equation Revision Exam Practise Questions

 Part 2b Writing & balancing symbol equation Question ANSWERS

The answers to the GCSE/IGCSE KS4 Science-Chemistry practice questions for the symbol equations for the reactions of acids with metals, oxides, hydroxides and carbonates and hydrogencarbonates

1a Word Equation Questions

1b Word Equation Question Answers

 2a Symbol Equation Questions

Teach yourself to write equations!

GCSE/IGCSE Acids, Bases & Salts Notes

GCSE/IGCSE Multiple Choice BALANCING EQUATION QUIZ

GCSE/IGCSE KS4 Science-CHEMISTRY Revision Questions

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

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