Chem 11 Review Solutions
Multiple Choice
1. a 2. A 3. D 4. B 5. B 6. A 7. B 8. D 9. B 10. D 11. C 12. A 13. A 14. C 15. D
Short answer
1. a) last energy level orbital: 2s2
b) last energy level orbital: 7s2
c) last energy level orbital: 3s1
d) last energy level orbital: 5d10
2. a) last energy level orbital: 5p2 (one electron in the first 2 suborbitals)
b) last energy level orbital: 4p6 (all suborbital’s filled)
c) last energy level orbital: 5d9
d) last energy level orbital: 4s1
3. a) PH3: pyramidal, bond/compound both nonpolar
b) CO2: linear, polar bonds, nonpolar compound
c) H2O: Bent, polar bonds and compound
d) HCN: linear, polar bonds, polar compound
e) BCl3: Trigonal planar, polar bonds, nonpolar compound
4. a) 4 b) 12 c) zinc
5. hydrochloric acid
potassium hydroxide
mercury hydroxide
iron (III) chloride
aluminum sulfate
dinitrogen pentoxide
hydrofluoric acid
lead (II) hydroxide
ammonium nitrate
sodium bicarbonate
zinc nitrate
phosphoric acid
sulfur trioxide
sodium acetate
antimony (III) fluoride
palladium (II) cyanide
calcium manganate
nickel (II) selenate
sulfuroud acid
barium hydroxide
lead (II) sulfide
6. a) Na2CO3 + Ca(OH)2  2NaOH + CaCO3
b) 2Na + 2H2O  2NaOH + H2
c) Zn + H2SO4  ZnSO4 + H2
d) Al2(SO4)3 + 3Ca(OH)2  2Al(OH)3 + 3CaSO4
e) CaO + H2O  Ca(OH)2
Calculations
1. a) 24.31g.mol b) 192.25g.mol
2. a) 0.0637mol
b) 1.02 x 10^-3 mol
c) 0.558mol
3. a) 4.63 x 10^-9 g
b) 2.58 x 10^6 g
c) 0.08g
d) 1.64 x 10^-15
4. 27.26% Ga, 16.43%N, 56.31% O
5. 150g Carbon
6. a) CH3 b) N2H4O3 c) C3H7 d) K2Cr2O7
7. a) C2H4Cl2
b) N2O4
8. 25.8L Cl2
9. 20.9L O2
10. Cl2 is in excess 19.4g Br2 produced, 16.4g Cl2 in excess
11. Omit #11
12. 6.85L O2