CHEM 120 DeVry Week 2 Quiz Latest

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CHEM 120 DeVry Week 2 Quiz Latest

CHEM120

CHEM 120 DeVry Week 2 Quiz Latest

  1. Question : (TCO 3)For the following molecule, give the cation name and charge (1pt) , anion name and charge (1pt), type(s) of bond (2pts) and name of the molecule (1pt). MgBr2

Question 2. Question : (TCO 3) What is the name for the following compound, SiCl4?

Question 3. Question : (TCO 3) For the following molecule, give the cation name and charge (1pt) , anion name and charge (1pt), and name of the molecule (3 pt). MgSO4

Question 4. Question : (TCO 3) Write the chemical formula for the following compound:

Barium chloride.

NOTE: You will not be able to use subscripts to note the number of atoms. This is OK.

Question 5. Question : (TCO 3) The maximum number of electrons that may reside in the n=2 energy level is

  • 2
  • 3
  • 8
  • 10
  • 18

Question 6. Question : (TCO 3) How many electrons are there in a nitrogen atom?

  • 15
  • 19
  • 7
  • 14
  • 84

Question 7. Question : (TCO 3) Which is an IMPOSSIBLE electron configuration?

  • 1s3 2s2 2p4
  • 1s2 2s2
  • 1s2 2s2 2p4
  • 1s2 2s2 2p4 3s1
  • 1s2 2s2 2p4 3s2

Question 8. Question : (TCO 3) The ground element with the ground state electron configuration of 1s2 2s2 2p6 is

  • Mg.
  • Ca.
  • Mn
  • Na.
  • Ne.

Question 9. Question : (TCO 3) Which substance has ionic bonds?

  • Na2S
  • CO3
  • CCl4
  • N2
  • NH3

Question 10. Question : (TCO 3) A oxide ion is _________ .

  • O-
  • O2-
  • O
  • O2+
  • O+

Question 11. Question : (TCO 3) The correct name for the compound CuCl2 is ___________.

  • copper chloride
  • copper dichloride
  • copper (II) chloride
  • Monocopper dichloride

Question 12. Question : (TCO 4) If a central atom has a total of two groups and no lone pairs attached to it, the geometry about the central atom is _________.

  • linear
  • triangular
  • tetrahedral
  • pyramidal
  • none of the above

Question 13. Question : (TCO 4) Which of the following is the electron dot structure for Nitrogen, N2?

  • :::N:N:::
  • ::N::N::
  • :N:::N:
  • N::::N
  • N:N

Question 14. Question : (TCO 4) Which substance has Ionic bonds?

  • O2
  • NH3
  • Cl2
  • CaCl2