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GCSE Chemistry Notes: Practice questions on word equations

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FOR PRINTING OUT - Doc Brown's Chemistry KS4 science GCSE/IGCSE Practice Revision Questions

Chemical Equation Revision Practice

WORD EQUATION QUESTIONS

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

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 1b Word Equation Question Answers

2a Symbol Equation Questions

2b Symbol Equation Question Answers

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)


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 sulfuric acid makes a ... sulfate (...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 (just write down Q number plus space answers and check)

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

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

2.  _______________________ + sulfuric acid ===> copper(II) sulfate + water + carbon dioxide

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

4. zinc + sulfuric acid ===> zinc sulfate +  ___________________________

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

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

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

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

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

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

11.  ___________________________ + sulfuric acid ===> magnesium sulfate + 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 sulfate + water +  ________________

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

19.  ___________________________ + sulfuric acid ===> iron(II) sulfate + hydrogen

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

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

22. aluminium +  ___________________________ ===> aluminium sulfate + hydrogen

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

24. magnesium hydroxide +  ________________ ===> magnesium sulfate +  ________________

25. ammonia + sulfuric acid ===>  ___________________________

26. ammonia +  ___________________________ ===> ammonium chloride

27. zinc hydroxide + sulfuric acid ===>  _____________________ +  ______________

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

29. sodium hydroxide + sulfuric 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 +  _____________

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