Practice Quiz

Praxis II: Chemistry Exam Prep - Question List

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16. What type of bonding does a molecule of NaCl display?
  1. Ionic
  2. Polar covalent
  3. Nonpolar covalent
  4. Metallic
  5. Covalent metallic
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17. Which of the following laws states that it is impossible to known the position and momentum of an electron simultaneously?
  1. Pauli exclusion principle
  2. Heisenberg's uncertainty principle
  3. Hund's rule
  4. Grahm's law
  5. Ampere's law
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18. A colloid made from a liquid dispersing medium and gas dispersed phase is called what?
  1. Aerosol
  2. Emulsion
  3. Sol
  4. Solid Foam
  5. Foam
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19. When a hydrocarbon undergoes combustion in O2, what are the products?
  1. CH4 and H2O
  2. CO2 and H2O
  3. CH4 and CO2
  4. C2H2 and CO2
  5. C2H2 and CH4
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20. Which of the following is not true about complex ions?
  1. Complex ions are formed with a metal as the central atom
  2. The other molecules that bond to the metal are called ligands
  3. Ligands act as Lewis Acids
  4. The coordination number of a complex ion refers to the number of bonds the center atom forms
  5. All of the above are true
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