« previous next »

Author Question: A hydrogen bond is: a. a sharing of a pair of electrons between a hydrogen and an oxygen nucleus ... (Read 72 times)

jc611

  • Hero Member
  • *****
  • Posts: 552
on: Jul 27, 2018
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
Reply #1 on: Jul 27, 2018
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
« previous next »
 

Did you know?

Alzheimer's disease affects only about 10% of people older than 65 years of age. Most forms of decreased mental function and dementia are caused by disuse (letting the mind get lazy).

Did you know?

Drug abusers experience the following scenario: The pleasure given by their drug (or drugs) of choice is so strong that it is difficult to eradicate even after years of staying away from the substances involved. Certain triggers may cause a drug abuser to relapse. Research shows that long-term drug abuse results in significant changes in brain function that persist long after an individual stops using drugs. It is most important to realize that the same is true of not just illegal substances but alcohol and tobacco as well.

Did you know?

Despite claims by manufacturers, the supplement known as Ginkgo biloba was shown in a study of more than 3,000 participants to be ineffective in reducing development of dementia and Alzheimer’s disease in older people.

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?

More than 2,500 barbiturates have been synthesized. At the height of their popularity, about 50 were marketed for human use.

Erythrocytes contain large amounts of the oxygen-transporting protein Erythrocytes contain large amounts of the oxygen-transporting protein
Lateral Geniculate Nucleus Lateral Geniculate Nucleus
The nucleus is bounded by a double membrane called the nuclear envelope The nucleus is bounded by a double membrane called the nuclear envelope
(a) In nondisjunction in meiosis I, one pair of chromosomes fails to separate properly at anaphase I (a) In nondisjunction in meiosis I, one pair of chromosomes fails to separate properly at anaphase I
Which of the 3 structures shown below has the shortest bond length? Justify your answer. Which of the 3 structures shown below has the shortest bond length? Justify your answer.
Video: Cortisol (protein catabolism, gluconeogenesis, vasoconstriction & anti-inflammation)

For a complete list of videos, visit our video library