Practice Quiz

IB Chemistry Test Prep - Question List

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41. Cu + 2AgNO3 --> 2Ag + Cu(NO3)2

In the reaction above, which element is oxidized?
  1. Cu
  2. Ag
  3. N
  4. O
  5. Oxidation does not occur in this reaction
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42. ____CH3OH(l) + _____O2(g) --> _____CO2(g) + _____H2O(g)

What set of coefficients correctly balances this equation?
  1. 2, 3, 2, 1
  2. 1, 2, 2, 1
  3. 2, 3, 4, 2
  4. 2, 3, 3, 4
  5. 2, 3, 2, 4
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43. 2SO2(g) + O2(g) --> 2SO3(g)

What is the correct rate law for this reaction?
  1. r = k[SO2][O2]
  2. r = k[SO3]
  3. r = k[SO2]2[O2]
  4. r = k[SO3]2
  5. r = k[SO3][SO2][O2]
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44. 80.0 grams of NaOH is dissolved in 3.0 moles of H20. What is the mole fraction of NaOH in this solution?
  1. .20
  2. .37
  3. .40
  4. .64
  5. .79
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45. NH3(g) + CuO(s) --> N2(g) + Cu(s) + H2O(g)

What set of coefficients correctly balances the above equation?
  1. 3, 3, 1, 2, 3
  2. 3, 2, 1, 2, 2
  3. 2, 3, 1, 3, 3
  4. 1, 2, 3, 2, 2
  5. 3, 2, 1, 2, 3
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