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Chemical Equation Revision Practice - a worksheet on writing word equations & balancing symbol equations 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 1a Word Equation Questions * 1b Word Equation Question Answers * 2a Symbol Equation Questions * 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) 2b SYMBOL EQUATION QUESTION ANSWERS 1. Mg(s) + 2HCl(aq) ===> MgCl2(aq) + H2(g) 2. ZnO(s) + H2SO4(aq) ===> ZnSO4(aq) + H2O(l) 3. CaO(s) + 2HNO3(aq) ===> Ca(NO3)2(aq) + H2O(l) 4. CuCO3(s) + H2SO4(aq) ===> CuSO4(aq) + H2O(l) + CO2(g) 5. Ca(OH)2(s) + 2HCl(aq) ===> CaCl2(aq) + 2H2O(l) 6. Zn(s) + H2SO4(aq) ===> ZnSO4(aq) + H2(g) 7. NH3(aq) + HNO3(aq) ===> NH4NO3(aq) 8. CuO(s) + 2HCl(aq) ===> CuCl2(aq) + H2O(l) 9. MgCO3(s) + 2HCl(aq) ===> MgCl2(aq) + H2O(l) + CO2(g) 10. Mg(OH)2(s) + H2SO4(aq) ===> MgSO4(aq) + 2H2O(l) 11. CuO(s) + 2HNO3(aq) ==> Cu(NO3)2(aq) + H2O(l) 12. Zn(s) + 2HCl(aq) ===> ZnCl2(aq) + H2(g) 13. MgO(s) + H2SO4(aq) ===> MgSO4(aq) + H2O(l) 14. MgCO3(s) + H2SO4(aq) ===>MgSO4(aq) + H2O(l) + CO2(g) 15. Zn(OH)2(s) + 2HCl(aq) ===> ZnCl2(aq) + 2H2O(l) 16. Mg(s) + H2SO4(aq) ===> MgSO4(aq) + H2(g) 17. ZnO(s) + 2HCl(aq) ===> ZnCl2(aq) + H2O(l) 18. CuCO3(s) + 2HCl(aq) ===> CuCl2(aq) + H2O(l) + CO2(g) 19. Ca(OH)2(s) + H2SO4(aq) ===> CaSO4(aq) + 2H2O(l) 20. 2Al(s) + 6HCl(aq) ===> 2AlCl3(aq) + 3H2(g) 21. CuO(s) + H2SO4(aq) ===> CuSO4(aq) + H2O(l) 22. ZnCO3(s) + H2SO4(aq) ===> ZnSO4(aq)+ H2O(l) + CO2(g) 23. Mg(s) + 2HNO3(aq) ===> Mg(NO3)2(aq) + H2(g) 24. NaOH(aq) + HCl(aq) ===> NaCl(aq) + H2O(l) 25. 2Al(s) + 3H2SO4(aq) ===> Al2(SO4)3(aq) + 3H2(g) 26. MgO(s) + 2HCl(aq) ===> MgCl2(aq) + H2O(l) 27. Na2CO3(aq) + 2HCl(aq) ===> 2NaCl(aq) + H2O(l) + CO2(g) 28. 2NaOH(aq) + H2SO4(aq) ===> Na2SO4(aq) + 2H2O(l) 29. Fe(s) + 2HCl(aq) ===> FeCl2(aq) + H2(g) 30. Fe(s) + H2SO4(aq) ===> FeSO4(aq) + H2(g) 31. NH3(aq) + HNO3(aq) ===> NH4NO3(aq) 32. Na2CO3(aq) + H2SO4(aq) ===> Na2SO4(aq) + H2O(l) + CO2(g) 33. Zn(OH)2(s) + 2HCl(aq) ===> ZnCl2(aq) + 2H2O(l) 34. Mg(OH)2(s) + 2HCl(aq) ===> MgCl2(aq) + 2H2O(l) 35. ZnCO3(s) + 2HCl(aq) ===> ZnCl2(aq)+ H2O(l) + CO2(g) 36. NaHCO3(s) + HCl(aq) ===> NaCl(aq) + H2O(l) + CO2(g) 37. NH3(aq) + HCl(aq) ===> NH4Cl(aq) 38. 2NH3(aq) + H2SO4(aq) ===> (NH4)2SO4(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. GCSE at Doc Brown's Chemistry Clinic: Science-chemistry for revising course content e.g. answers to practice balancing equations of acids with oxides hydroxides carbonates bases alkalis word equations balanced symbol equations structure formula/formulae annotated/labelled diagrams apparatus information methods of preparation described properties defined explained facts data concepts principles theory explanation descriptive/descriptions definitions revision notes for answers to practice balancing equations of acids with oxides hydroxides carbonates bases alkalis, tests and multiple choice quizzes for answers to practice balancing equations of acids with oxides hydroxides carbonates bases alkalis, worksheets for answers to practice balancing equations of acids with oxides hydroxides carbonates bases alkalis, practice questions for answers to practice balancing equations of acids with oxides hydroxides carbonates bases alkalis covering GCSE/IGCSE/O level international Science-Chemistry/KS4 Single award Science-Chemistry, double award Science, triple award Science chemistry courses for the exam/examination boards: AQA GCSE Science-Chemistry, Additional Science, Additional Applied Science; Edexcel 360 Science, GCSE Additional Science, Chemistry; OCR 21st century science suite Science-Chemistry, Additional Science, Additional Applied Science; OCR Gateway Science Suite: GCSE Science, Additional Science, Applied Science, IGCSE Chemistry; WJEC Science-Chemistry, GCSE Additional Science; CCEA GCSE Science double award, GCSE Chemistry. 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