Which of the following compound is considered polar? a. HCN b. C2H6 c. H2S d. C2H2

Principles of Modern Chemistry
8th Edition
ISBN:9781305079113
Author:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler
Publisher:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler
Chapter3: Atomic Shells And Classical Models Of Chemical Bonding
Section: Chapter Questions
Problem 37P: The percent ionic character of a bond can be approximated by the formula 16+3.52 , where is the...
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Which of the following compound is considered polar?

a. HCN

b. C2H6

c. H2S

d. C2H2

As principal energy levels increase, the pull of the nucleus to the electrons:

a. stays the same 

b. increases

c. decreases

Which of the following chemical equations correctly shows how ions obey the octet rule?

a. Cl ---> Cl- + e-

b. Na + e-  ---> Na-

c. Cl + e---> Cl- 

d. Na ---> Na-+ e-

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