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Review Questions for the Free Response Section of the Semester Two (Final) Examination
Name:_________________________________ Date: _____________
1. Calculate the number of moles of sulfur dioxide (SO2) in 76.1 g SO2.
S = 32 grams/mole O = 12 grams/mole
2. Determine the percentage composition of magnesium carbonate (MgCO3). Mg = 24 g/mole
Percent of an element = Mass of the element X 100 C = 12 g/mol Total formula mass
O = 16 g/mol
3. How many grams are there in 0.5 moles of each of the compounds? a) H2S b) Mg c) C12H22O11 d) F2
4. How many particles*…show more content…*

59. Fill in the missing particle or element from the periodic table for X. Indicate mass and charge. a) 60Co ( X + 60Ni 27 28 b) 231Th ( X + 0 e 90 -1 c) X ( 20Ne + 0 e 10 -1 60. Phosphorus–32, has a half-life of 14 days. If a sample contains 8.0 grams of P-32, how many grams of P-32 remain after 42 days? 61. Given the equation: AgCl + Zn ( ZnCl2 + Ag a) Balance the equation. b) Write the redox half reactions (one for oxidation, one for reduction). c) Identify the substance being*…show more content…*

e) Identify the oxidizing agent. f) Identify the reducing agent. 62. Write the equilibrium expression or the reaction 4 NH3 (g) + 5 O2 (g) ( 4 NO (g) + 6 H2O (g) 63. A large Keq favors _____________________ 64. A small Keq

59. Fill in the missing particle or element from the periodic table for X. Indicate mass and charge. a) 60Co ( X + 60Ni 27 28 b) 231Th ( X + 0 e 90 -1 c) X ( 20Ne + 0 e 10 -1 60. Phosphorus–32, has a half-life of 14 days. If a sample contains 8.0 grams of P-32, how many grams of P-32 remain after 42 days? 61. Given the equation: AgCl + Zn ( ZnCl2 + Ag a) Balance the equation. b) Write the redox half reactions (one for oxidation, one for reduction). c) Identify the substance being

e) Identify the oxidizing agent. f) Identify the reducing agent. 62. Write the equilibrium expression or the reaction 4 NH3 (g) + 5 O2 (g) ( 4 NO (g) + 6 H2O (g) 63. A large Keq favors _____________________ 64. A small Keq

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