Devry CHEM 120 Week 2 Quiz Latest

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Devry CHEM 120 Week 2 Quiz Latest

 

1. 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

 

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Devry CHEM 120 Week 2 Quiz Latest