# Chapter 4 extra credit.docx - Chapter 4 Stoichiometry of...

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Chapter 4: Stoichiometry of Chemical Reactions Extra Credit Name: ______________________ 1. Balance the following Chemical Equations: (A) ____Fe(s) + ____H 2 O(g) ____Fe 3 O 4 (s) + ____H 2 (g) (B) ____C 2 H 6 (g) + ____O 2 (g) ____CO 2 (g) + ____H 2 O(g) (C) ___ KClO 3 (s) ___ KCl (s) + ___ O 2 (g) (D) ___ C 6 H 14 (l) + ___ O 2 (g) ___ CO 2 (g) + ___ H 2 O (g) (E) ___ C 3 H 8 O 3 (l) + ___ O 2 (g) ___ CO 2 (g) + ___ H 2 O (l) (F) ___ NaN 3 (s) ___ Na (s) + ___ N 2 (g) (G) ___ C 3 H 5 N 3 O 9 ___ CO 2 + ___ N 2 + ___ H 2 O + ___ O 2 2. Write and Balance the equations: (A) Aqueous calcium hydroxide reacts with aqueous sodium carbonate to produce solid calcium carbonate and aqueous sodium hydroxide. (B) Solid iron reacts with Oxygen gas to form solid Iron (II) oxide (C) Copper(II) sulfide is oxidized by molecular oxygen to produce gaseous sulfur trioxide and solid copper(II) oxide. The gaseous product then reacts with liquid water to produce liquid hydrogen sulfate as the only product. Write the two equations which represent these reactions. 3. Indicate what type, or types, of reaction each of the following represents: ( precipitation, acid-base, and oxidation-reduction.) (A) H 2 O(g) + C(s) CO(g) +H 2 (g) (B) 2KClO 3 (s) 2KCl(s) +3O 2 (g) (C) Al(OH)3(aq) +3HCl(aq) AlCl 3 (aq) + 3H2O(l) (D) Pb(NO 3 ) 2

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