Page 1297 - Chemistry--atom first
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Answer Key 1287
15. It is an oxidation-reduction reaction because the oxidation state of the silver changes during the reaction.
17. (a) H +1, P +5, O −2; (b) Al +3, H +1, O −2; (c) Se +4, O −2; (d) K +1, N +3, O −2; (e) In +3, S −2; (f) P +3, O
−2
19. (a) acid-base; (b) oxidation-reduction: Na is oxidized, H+ is reduced; (c) oxidation-reduction: Mg is oxidized, Cl2 is reduced; (d) acid-base; (e) oxidation-reduction: P3− is oxidized, O2 is reduced; (f) acid-base
21. (a) (b)
23. (a) (b) (c) (d)
25. (a) (b) (a solution of H2SO4); (c)
27.
29.
31.
33. (a) (b)
35. (a) step 1: step 2:
(b) (c) and
37. (a) (b) (c) (d) (e)
(f)
(g)
(h)
39. (a) (b)
(c)
(d) (e)
41. (a) (b) (c)
43. (a) 0.435 mol Na, 0.217 mol Cl2, 15.4 g Cl2; (b) 0.005780 mol HgO, 2.890 10−3 mol O2, 9.248 10−2 g O2; (c) 8.00 mol NaNO3, 6.8 102 g NaNO3; (d) 1665 mol CO2, 73.3 kg CO2; (e) 18.86 mol CuO, 2.330 kg CuCO3; (f) 0.4580 mol C2H4Br2, 86.05 g C2H4Br2
45. (a) 0.0686 mol Mg, 1.67 g Mg; (b) 2.701 10−3 mol O2, 0.08644 g O2; (c) 6.43 mol MgCO3, 542 g MgCO3 (d) 713 mol H2O, 12.8 kg H2O; (e) 16.31 mol BaO2, 2762 g BaO2; (f) 0.207 mol C2H4, 5.81 g C2H4
47. (a) (b) 1.25 mol GaCl3, 2.2 102 g GaCl3 49. (a) 5.337 1022 molecules; (b) 10.41 g Zn(CN)2
