TEST 3 REVIEW

  1. Balance each reaction below::
    a)
    a)

    b) NaCl +
    c) NaOH
    NaCl +
    d)
    e)
  2. For each reaction below, determine the substance oxidized and the substance reduced:
    a)
    oxidized: reduced:
    b)
    oxidized: reduced:
    c)
    oxidized: reduced:
    d)
    oxidized: reduced:
  3. For each half-reaction shown below (a) determine if it is written correctly, and (b) if correct, classify as oxidation or reduction:
    a)
    b)
    c)
    d)
    e)
  4. Use the balanced equation shown below to answer the following questions:
a) How many moles of are required to completely react with 0.56 moles of K ?
b) How many grams of can be formed from reaction of 0.65 moles of ?
c) How many grams of can be formed from reaction of 5.00 g of K and 2.00 g of ?
5. Use the balanced equation shown below to answer the following questions:
a) How many grams of can be prepared from reaction of 0.575 mol of ?
b) In one experiment, 100.0 g of CO reacted with excess to produce 141.3 g of Fe. What is the percent yield for this reaction?
6. Use the balanced equation shown below to answer the following questions:
a) How many moles of carbon dioxide are produced from reaction of 35.0 g of ?
b) How many grams of water are produced from reaction of 75.0 g of and 125 g of ?

Answers:

  1. No answer provided.
  2. a) oxidized: Na reduced: Cl
    b) oxidized: reduced:
    c) oxidized: Mg reduced: Zn
    d) oxidized: reduced:
  3. a) reduction
    b) incorrect
    c) oxidation
    d) reduction
    e) incorrect
  4. a)
    b) ( 2 sig figs)
    c) 6.0 g of ( 2 sig figs)
  5. a) ( 3 sig figs)
    b) (4 sig figs)
  6. a) ( 3 sig figs)
    b) (3 sig figs)