AP Chemistry Exam Prep - Question List

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1. ____CH3OH(I) + _____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
2. Which of the following elements has the largest atomic radius?
  1. Lithium
  2. Boron
  3. Fluorine
  4. Potassium
  5. Rubidium
3. Which of the following families contains characteristically nonreactive elements?
  1. Alkali metals
  2. Alkaline earth metals
  3. Halides
  4. Halogens
  5. Noble gases
4. The half-life of 32 grams of a radioactive substance is 6.5 hours. How many grams of the substance remain after 19.5 hours?
  1. 16 grams
  2. 8 grams
  3. 4 grams
  4. 2 grams
  5. 32 grams
5. Why is Rutherford’s gold foil experiment significant?
  1. It led to the discovery of the electron
  2. It led to the discovery of the nucleus
  3. It led to the discovery of the proton
  4. It led to the discovery of the neutron
  5. It led to the discovery of orbitals

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