Q.1
The chemical formula of dinitrogen tetroxide is:
  • Ni₂O₄
  • NiO
  • N₂O₄
  • NiO₂
Q.2
The chemical name of SO₃ is:
  • sulfate
  • sulfur oxide
  • sulfur trioxide
  • monosulfur trioxide
Q.3
In the correct Lewis structure for water, how many unshared pairs of electrons will oxygen have?
  • 1
  • 4
  • 3
  • 2
Q.4
After drawing in your bonds, what do you do if you don't have enough electrons to get each atom to its octet?
  • Place dots until everything has eight
  • Place dots only around the terminal atoms
  • Add a multiple bond
  • Have eight only around the central atom
Q.5
If electrons are shared unequally then the bond is....
  • Non-polar covalent
  • Ionic
  • Non-polar ionic
  • Polar covalent
Q.6
How many electrons should Lithium have around its Lewis dot model?
  • 1
  • 2
  • 3
  • 4
Q.7
Write the formula for: chlorine monoxide
  • ClO
  • Cl2O
  • CO
  • None of these
Q.8
Write the formula for: selenium dihydride
  • H2O
  • (H3C)3 Si
  • H₂Se
  • None of these
0 h : 0 m : 1 s