Reaction Writing Sheet #1 Key

Transcription

1 Reaction Writing Sheet #1 Key Write and balance each of the following reactions and indicate the reaction type(s) present: 1. zinc + sulfur zinc sulfide 8 Zn (s) + S 8 (s) 8 ZnS (s) synthesis 2. potassium chloride + silver nitrate potassium nitrate + silver chloride KCl (aq) + AgNO 3 (aq) AgCl (s) + KNO 3 (aq) precipitation 3. calcium oxide + water calcium hydroxide CaO (s) + H 2 O (l) Ca(OH) 2 (s) synthesis 4. sodium hydroxide + hydrochloric acid sodium chloride + water NaOH (aq) + HCl (aq) NaCl (aq) + H 2 O (l) acid-base -- neutralization 5. magnesium bromide + chlorine magnesium chloride + bromine MgBr 2 (aq) + Cl 2 (g) MgCl 2 (aq) + Br 2 (l) redox more active halogen 6. ammonium nitrite nitrogen + water NH 4 NO 2 (s) N 2 (g) + 2 H 2 O (l) analysis 7. aluminum + iron(iii) oxide aluminum oxide + iron 2 Al (s) + Fe 2 O 3 (s) Al 2 O 3 (s) + 2 Fe (s) redox more active metal replacement 8. silver nitrate + nickel nickel(ii) nitrate + silver 2 AgNO 3 (aq) + Ni (s) Ni(NO 3 ) 2 (aq) + 2 Ag (s) redox more active metal 9. sodium chloride + sulfuric acid sodium sulfate + hydrogen chloride 2 NaCl (aq) + H 2 SO 4 (aq) Na 2 SO 4 (aq) + 2 HCl (aq) No Reaction 10. hydrogen + nitrogen ammonia 3 H 2 (g) + N 2 (g) 2 NH 3 (g) synthesis Complete the word equation and write the balanced formula equations: Composition: 11. sodium + iodine sodium iodide 2 Na (s) + I 2 (s) 2 NaI (s) 12. calcium + oxygen calcium oxide 2 Ca (s) + O 2 (g) 2 CaO (s) 13. hydrogen + chlorine hydrogen chloride H 2 (g) + Cl 2 (g) 2 HCl (g) Decomposition:

2 14. nickel(ii) chlorate nickel (II) chloride + oxygen Ni(ClO 3 ) 2 (s) 2 NiCl 2 (s) + 3 O 2 (g) 15. barium carbonate barium oxide + carbon dioxide BaCO 3 (s) BaO (s) + CO 2 (g) 16. zinc hydroxide zinc oxide + water Zn(OH) 2 (S) ZnO (s) + H 2 O (l) Precipitation/Acid-Base: 17. silver nitrate + zinc chloride silver chloride + zinc nitrate 2 AgNO 3 (aq) ZnCl 2 (aq) 2 AgCl (s) + Zn(NO 3 ) 2 (aq) 18. copper(ii) hydroxide + acetic acid copper (II) acetate + water Cu(OH) 2 (s) + 2 HCH 3 COO (aq) Cu(CH 3 COO) 2 (aq) + 2 H 2 O (l) 19. iron(ii) sulfate + ammonium sulfide iron (II) sulfide + ammonium sulfate FeSO 4 (aq) + (NH 4 ) 2 S (aq) FeS (s) + (NH 4 ) 2 SO 4 (aq) Oxidation-Reduction 20. aluminum + sulfuric acid aluminum sulfate + hydrogen 2 Al (s) + 3 H 2 SO 4 (aq) Al 2 (SO 4 ) 3 (aq) + 3 H 2 (g) 21. potassium iodide + chlorine potassium chloride + iodine 2 KI aq) + Cl 2 (g) 2 KCl (aq) + I 2 (s) 22. iron + copper(ii) nitrate iron(ii) nitrate + copper Fe (s) + Cu(NO 3 ) 2 (aq) Fe(NO 3 ) 2 (aq) + Cu (s) Combustion: methane + oxygen carbon dioxide + water CH 4 (g) + 2 O 2 (g) CO 2 (g) + 2 H 2 O (g) propane + oxygen carbon dioxide + water C 3 H 8 (g) + 5 O 2 (g) 3 CO 2 (g) + 4 H 2 O (g) ethanol + oxygen carbon dioxide + water C 2 H 5 OH (l) + 3 O 2 (g) 2 CO 2 (g) + 3 H 2 O (g)

3 Write the complete balanced equation and reaction type(s) for each of the following reactions: 23. barium chloride + sodium sulfate BaCl 2 (aq) + Na 2 SO 4 (aq) BaSO 4 (s) + 2 NaCl (aq) precipitation 24. calcium + hydrochloric acid Ca (s) + 2 HCl (aq) CaCl 2 (aq) + H 2 (g) redox more active metal 25. iron(ii) sulfide + hydrochloric acid FeS (s) + 2 HCl (aq) FeCl 2 (aq) + H 2 S (g) exchange active metal 26. zinc chloride + ammonium sulfide ZnCl 2 (aq) + (NH 4 ) 2 S (aq) ZnS (s) + 2 NH 4 Cl (aq) precipitation 27. ammonia + oxygen nitric acid + water NH 3 (g) + 2 O 2 (g) HNO 3 (aq) + H 2 O (l) redox 28. magnesium + nitric acid Mg (s) + 2 HNO 3 (aq) Mg(NO 3 ) 2 (aq) + H 2 (g) redox acid replace metal 29. potassium + water 2 K (s) + 2 H 2 O (l) 2 KOH (aq) + H 2 (g) redox more active metal 30. sodium iodide + bromine 2 NaI (aq) + Br 2 (l) 2 NaBr (aq) + I 2 (s) redox more active halogen 31. silver + sulfur 16 Ag (s) + S 8 (s) 8 Ag 2 S (s) synthesis 32. sodium chlorate 2NaClO 3 (s) 2 NaCl (s) + 3 O 2(g) decomposition 33. carbon + steam carbon monoxide + hydrogen C (s) + H 2 O (g) CO (g) + H 2 (g) redox more active metal 34. zinc + lead(ii) acetate Zn (s) + Pb(CH 3 COO) 2 (aq) Zn(CH 3 COO) 2 (aq) + Pb (s) redox more active metal 35. iron(ii) hydroxide Fe(OH) 2 (s) FeO (s) + H 2 O (l) decomposition 36. iron(iii) oxide + carbon monoxide iron + carbon dioxide Fe 2 O 3 (s) + 3 CO (g) 2 Fe (s) + 3 CO 2 (g) redox more active metal 37. lead(ii) acetate + hydrogen sulfide Pb(CH 3 COO) 2 (aq) + H 2 S (g) PbS (s) + 2 HCH 3 COO (aq) precipitation 38. aluminum bromide + chlorine 2 AlBr 3 (aq) + 3 Cl 2 (g) 2 AlCl 3 (aq) + 3 Br 2 (l) redox more active halogen 39. magnesium carbonate MgCO 3 (s) MgO (s) + CO 2 (g) decomposition 40. iron(iii) chloride + sodium hydroxide FeCl 3 (aq) + 3 NaOH (aq) Fe(OH) 3 (s) + 3 NaCl (aq) precipitation

4 41. calcium oxide + diphosphorus pentoxide calcium phosphate 3 CaO (s) + P 2 O 5 (s) Ca 3 (PO 4 ) 2 (s) synthesis 42. chromium + oxygen 4 Cr (s) + 3 O 2 (g) 2 Cr 2 O 3 (s) synthesis 43. sodium + water 2 Na (s) + 2 H 2 O (l) 2 NaOH (aq) + H 2 (g) redox more active metal 44. calcium carbonate + hydrochloric acid CaCO 3 (s) + 2 HCl (aq) CaCl 2 (aq) + H 2 O (l) + CO 2 (g) replacement & decomp. 45. calcium hydroxide + phosphoric acid 3 Ca(OH) 2 (aq) + 2 H 3 PO 4 (aq) Ca 3 (PO 4 ) 2 (s) + 6 H 2 O (l) acid-base -- neutralization 46. sodium carbonate + nitric acid Na 2 CO 3 (aq) + 2 HNO 3 (aq) 2 NaNO 3 (aq) + H 2 O (l) + CO 2 (g) exchange gas form. 47. aluminum hydroxide + sulfuric acid 2 Al(OH) 3 (s) + 3 H 2 SO 4 (aq) Al 2 (SO 4 ) 3 (aq) 6 H 2 O (l) acid-base -- neutralization 48. sodium sulfite + sulfuric acid Na 2 SO 3 (aq) + H 2 SO 4 (aq) Na 2 SO 4 (aq) + H 2 O (l) + SO 2 (g) replacement/decomp 49. copper + sulfuric acid copper(ii) sulfate + water + sulfur dioxide Cu (s) + 2 H 2 SO 4 (aq) CuSO 4 (aq) + 2 H 2 O (l) + SO 2 (g) replacement/decomp. 50. calcium hydroxide + ammonium sulfate calcium sulfate + water + ammonia Ca(OH) 2 (s) + (NH 4 ) 2 SO 4 (aq) CaSO 4 (s) + 2 H 2 O (l) + 2 NH 3 (g) replacement/decomp. 51. carbon + oxygen C (s) + O 2 (g) CO 2 (g) redox -- combustion 52. sodium + chlorine 2 Na (s) + Cl 2 (g) 2 NaCl (s) synthesis 53. magnesium + oxygen 2 Mg (s) + O 2 (g) 2 MgO (s) synthesis/combustion 54. hydrogen peroxide 2 H 2 O 2 (aq) 2 H 2 O (l) + O 2 (g) redox/decomposition 55. barium chloride BaCl 2 (s) Ba (s) + Cl 2 (g) redox/decomposition 56. water 2 H 2 O (l) 2 H 2 (g) + O 2 (g) redox/decomposition 57. copper + silver nitrate Cu (s) + 2 AgNO 3 (aq) Cu(NO 3 ) 2 (aq) + 2 Ag (s) redox more active metal 58. sodium bromide + silver nitrate NaBr (aq) + AgNO 3 (aq) NaNO 3 (aq) + AgBr (s) precipitation 59. calcium nitrate + potassium sulfate Ca(NO 3 ) 2 (aq) + K 2 SO 4 (aq) CaSO 4 (s) + 2 KNO 3 (aq) precipitation

5 60. potassium chloride + lead(ii) nitrate 2 KCl (aq) + Pb(NO 3 ) 2 (aq) PbCl 2 (s) + 2 KNO 3 (aq) precipitation 61. calcium hydroxide + iron(iii) nitrate 3 Ca(OH) 2 (s) + 2 Fe(NO 3 ) 3 (aq) 3 Ca(NO 3 ) 2 (aq) + 2 Fe(OH) 3 (s) precipitation 62. magnesium sulfate + sodium phosphate 3 MgSO 4 (aq) + 2 Na 3 PO 4 (aq) Mg 3 (PO 4 ) 2 (s) + 3 Na 2 SO 4 (aq) precipitation 63. potassium hydroxide + aluminum chloride 3 KOH (aq) + AlCl 3 (aq) 3 KCl (aq) + Al(OH) 3 (s) precipitaion 64. mercury(ii) oxide 2 HgO (s) 2 Hg (l) + O 2 (g) decomposition 65. sulfur trioxide + water SO 3 (g) + H 2 O (l) H 2 SO 4 (aq) composition 66. calcium bromide + chlorine CaBr 2 (aq) + Cl 2 (g) CaCl 2 (aq) + Br 2 (l) redox more active halogen