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Doc Brown's Chemistry KS4 science GCSE/IGCSE Practice Revision Questions

Chemical Equation Revision Practice - WORD EQUATIONS

Part 1a Writing Word Equation Questions

GCSE/IGCSE KS4 Science-Chemistry examination ('exam') practice questions for the word equations for the reactions of acids with metals, oxides, hydroxides and carbonates and hydrogencarbonates

 1b Word Equation Question Answers * 2a Symbol Equation Questions * 2b Symbol Equation Question Answers

(c) doc b Teach yourself to write equations!

(c) doc b 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)


You must know four general word equations, all of which involve neutralisation (Foundation or Higher students) and higher students would be expected to write and interpret them as symbol equations too. (i) is also a redox reaction.


(i) metal + acid ==> a salt + hydrogen

(ii) basic oxide or hydroxide + acid ==> a salt + water

(iii) carbonate + acid ==> a salt + water + carbon dioxide

(iv) ammonia + acid ==> ammonium salt (note: no water formed, but ammonia (NH3) is an alkaline gas and soluble in water and neutralised by acids to form ammonium salts (NH4 ...)

The name of the salt depends on (i) the metal name, which becomes the first part of salt name, and (ii) the acid e.g. H2SO4 sulphuric acid makes a ... sulphate (...SO4), HCl hydrochloric acid makes a ... chloride (...Cl), HNO3 nitric acid makes a nitrate (...NO3) and CH3COOH ethanoic acid makes an ethanoate (...OOCCH3 or CH3COO..).


1a WORD EQUATION QUESTIONS

(you might have to fit two words in a line space)

1. zinc + hydrochloric acid ===> ?___________________________ + hydrogen

2. ?_______________________ + sulphuric acid ===> copper(II) sulphate + water + carbon dioxide

3. magnesium oxide + ?___________________________ ===> magnesium nitrate + water

4. zinc + sulphuric acid ===> zinc sulphate + ?___________________________

5. magnesium hydroxide + hydrochloric acid ===> ?___________________________ + water

6. ?__________________ + nitric acid ===> copper(II) nitrate + water + ?__________________

7. zinc carbonate + sulphuric acid ===> ?______________ + ?____________ + carbon dioxide

8. iron + ?___________________________ ===> iron(II) chloride + hydrogen

9. magnesium oxide + hydrochloric acid ===> ?____________________ + ?________________

10. ?_________________ + hydrochloric acid ===> calcium chloride + water + ?__________________

11. ?___________________________ + sulphuric acid ===> magnesium sulphate + hydrogen

12. magnesium + nitric acid ===> ?___________________________ + hydrogen

13. zinc hydroxide + ?___________________________ ===> zinc chloride + water

14. ?____________________ + hydrochloric acid ===> magnesium chloride + water + carbon dioxide

15. aluminium + hydrochloric acid ===> ?___________________________ + hydrogen

16. sodium hydroxide + hydrochloric acid ===> ?_______________________ + ?________________

17. sodium carbonate + ?_________________ ===> sodium sulphate + water + ?________________

18. ?___________________________ + nitric acid ===> calcium nitrate + water + carbon dioxide

19. ?___________________________ + sulphuric acid ===> iron(II) sulphate + hydrogen

20. zinc oxide + ?___________________________ ===> zinc chloride + water

21. copper(II) carbonate + sulphuric acid ===> ?_____________________ + water + carbon dioxide

22. aluminium + ?___________________________ ===> aluminium sulphate + hydrogen

23. calcium oxide + hydrochloric acid ===> ?______________________ + ?_________________

24. magnesium hydroxide + ?________________ ===> magnesium sulphate + ?________________

25. ammonia + sulphuric acid ===> ?___________________________

26. ammonia + ?___________________________ ===> ammonium chloride

27. zinc hydroxide + sulphuric acid ===> ?_____________________ + ?______________

28. copper(II) oxide + hydrochloric acid ===> ?___________________________ + water

29. sodium hydroxide + sulphuric acid ===> ?___________________________ + water

30. sodium hydrogencarbonate + hydrochloric acid ===>

?________________ + ?_________________ + ?________________

31. ammonia + ?___________________________ ===> ammonium nitrate

32. calcium oxide + ?_____________________ ===> calcium chloride + ?_____________________

33. aluminium hydroxide + nitric acid ===> ?___________________________ + water

34. calcium carbonate + ?________________ ===>

calcium ethanoate + ?____________ + ?________________

35. ethanoic acid + magnesium ===> ?____________________ + hydrogen

36. _________________ + magnesium oxide ===> magnesium ethanoate + ?____________

37. sodium hydroxide + ?_______________ ===> ?_____ ethanoate + ?_____________


Word Equation Question Answers

(c) doc b GCSE/IGCSE Acids, Bases & Salts Notes * GCSE/IGCE Multiple Choice BALANCING EQUATION QUIZ

(c) doc b Teach yourself to write equations!


Chemical 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.


Revision for KS4 Science IGCSE/O level/GCSE Chemistry Information Study Notes for revising for AQA GCSE Science, Edexcel GCSE Science/IGCSE Chemistry & OCR 21stC Science, OCR Gateway Science, CCEA/CEA GCSE science-chemistry, WJEC GCSE science-chemistry (revise courses equal to US grades 9-10) but even advanced level students need to know the contents of this page. for revising science chemistry courses revision guides

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