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Chemical Equation Revision Practice - a worksheet on writing word equations & balancing symbol equations Part 1a Word Equation Questions for The reactions of acids with metals, oxides, hydroxides and carbonates and hydrogen carbonates 1b Word Equation Question Answers * 2a Symbol Equation Questions * 2b Symbol Equation Question Answers * Acids, Bases & Salts Notes * ALL my GCSE KS4 Science-CHEMISTRY revision notes GCSE KS4 Science-CHEMISTRY m/c Q's * EMAIL query?comment 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 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
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.
* Copyright © Dr W P Brown 2000-2008 All rights reserved including the revision notes pages, quizzes, worksheets etc. * Doc Brown's Chemistry Clinic * www.docbrown.info/ *
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GCSE-IGCSE-KS4 Science-CHEMISTRY notes & quizzes (~US K12 grades 9-10) |
Advanced Level CHEMISTRY GCE AS A2 IB notes and quizzes (~US K12 grades 11-12) |
docbacidreactionequationsfh page updated 30th May 2008 |
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