Transcription of CHAPTER 3: ANSWERS TO ASSIGNED PROBLEMS
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CHAPTER 3: ANSWERS TO ASSIGNED PROBLEMS
1 CHAPTER 3: ANSWERS TO ASSIGNED PROBLEMS Hauser- General Chemistry I revised 9/17/08 Balance the following equations: (d) Al4C3 (s) + 12 H2O (l) 4 Al(OH)3 (s) + 3 CH4 (g) (e) 2 C5H10O2 (l) + 13 O2 (g) 10 CO2 (g) + 10 H2O (g) do C, H, then half fraction the O2; double everything to remove fraction (f) 2 Fe(OH)3 (s) + 3 H2SO4 (aq) Fe2(SO4)3 (aq) + 6 H2O (l) Write balanced chemical equations to correspond to each of the following descriptions: (b) When solid potassium chlorate is heated, it decomposes to form solid potassium chloride and oxygen gas. 2 KClO3 (s) 2 KCl (s) + 3 O2 (g) (c) Solid zinc metal reacts with sulfuric acid to form hydrogen gas and an aqueous solution of zinc sulfate.
2 3.33 Calculate the following quantities: (a) mass, in grams, of 0.105 moles sucrose (C 12H 22O 11) C 12 X 12.01 = 144.12 H 22 X 1.01 = 22.22
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