Author Question: A hydrogen bond is: a. a sharing of a pair of electrons between a hydrogen and an oxygen nucleus ... (Read 197 times)

jc611

  • Hero Member
  • *****
  • Posts: 552
A hydrogen bond is:
 
  a. a sharing of a pair of electrons between a hydrogen and an oxygen nucleus
  b. a sharing of a pair of electrons between a hydrogen nucleus and either an oxygen or a nitrogen nucleus
  c. a weak attraction between a covalently bonded hydrogen atom and another atom taking part in a separate polar covalent bond
  d. the loss of an electron by hydrogen to a highly electronegative atom
  e. a strong chemical bond between two ions

Question 2

Which of the following supports the idea that the Martian crust is not divided into moving plates like those on Earth? I. the size of Olympus Mons II. the lack of folded mountain chains III. the lack of rift valleys outlining entire plates IV. the presence of dry river beds and sea floors
 
  a. I & II
  b. II & III
  c. II, III & IV
  d. I, II, & III
  e. I, II, III, & IV



epscape

  • Sr. Member
  • ****
  • Posts: 335
Answer to Question 1

c

Answer to Question 2

d
RATIONALE: See page 396 and The History of Mars.



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

Pubic lice (crabs) are usually spread through sexual contact. You cannot catch them by using a public toilet.

Did you know?

Elderly adults are at greatest risk of stroke and myocardial infarction and have the most to gain from prophylaxis. Patients ages 60 to 80 years with blood pressures above 160/90 mm Hg should benefit from antihypertensive treatment.

Did you know?

Increased intake of vitamin D has been shown to reduce fractures up to 25% in older people.

Did you know?

The liver is the only organ that has the ability to regenerate itself after certain types of damage. As much as 25% of the liver can be removed, and it will still regenerate back to its original shape and size. However, the liver cannot regenerate after severe damage caused by alcohol.

Did you know?

Medication errors are more common among seriously ill patients than with those with minor conditions.

For a complete list of videos, visit our video library