« previous next »

Author Question: Why might nitrogen monoxide (NO) concentrations decrease as the day progresses? A) Morning rush ... (Read 71 times)

cherise1989

  • Hero Member
  • *****
  • Posts: 555
on: Aug 27, 2018
Why might nitrogen monoxide (NO) concentrations decrease as the day progresses?
 
  A) Morning rush hour traffic has ended.
  B) Plant photosynthesis starts when the sun rises.
  C) Solar energy causes the reactions that consume NO.
  D) The organisms that produce NO are anaerobic and there is more oxygen in the morning.
  E) I don't NO.

Question 2

The elements of Group VIIIA are almost entirely non-reactive with any of the other chemical elements. Which of the following statements best explains this observed behavior?
 
  A) Group VIIIA elements comply with the octet rule.
  B) Group VIIIA elements are so rare that no one has ever studied their reactive properties in any detail.
  C) Group VIIIA elements are all gases, and gases are generally non-reactive.
  D) No explanation given here can explain why Group VIIIA elements do not react with any of the other chemical elements.


Ddddd

  • Sr. Member
  • ****
  • Posts: 334
Reply #1 on: Aug 27, 2018
Answer to Question 1

C

Answer to Question 2

A


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

About 60% of newborn infants in the United States are jaundiced; that is, they look yellow. Kernicterus is a form of brain damage caused by excessive jaundice. When babies begin to be affected by excessive jaundice and begin to have brain damage, they become excessively lethargic.

Did you know?

Studies show that systolic blood pressure can be significantly lowered by taking statins. In fact, the higher the patient's baseline blood pressure, the greater the effect of statins on his or her blood pressure.

Did you know?

About 100 new prescription or over-the-counter drugs come into the U.S. market every year.

Did you know?

ACTH levels are normally highest in the early morning (between 6 and 8 A.M.) and lowest in the evening (between 6 and 11 P.M.). Therefore, a doctor who suspects abnormal levels looks for low ACTH in the morning and high ACTH in the evening.

Did you know?

Persons who overdose with cardiac glycosides have a better chance of overall survival if they can survive the first 24 hours after the overdose.

Trans and cis isomers of a peptide bond involving the imino nitrogen of proline Trans and cis isomers of a peptide bond involving the imino nitrogen of proline
Decrease in Fertility, 1800–1900 Decrease in Fertility, 1800–1900
An emission tester that uses nitrogen to pressurize the fuel system. An emission tester that uses nitrogen to pressurize the fuel system.
Threshold Levels of Carbon Monoxide Threshold Levels of Carbon Monoxide
If 250. L of nitrogen reacts with 582 L of hydrogen by the reaction: N2(g) + 3 H2(g) 2 NH3(g), ... If 250. L of nitrogen reacts with 582 L of hydrogen by the reaction: N2(g) + 3 H2(g) 2 NH3(g), ...
Harry and Gus fish the same lake together from the same boat. Each morning Harry typically ... Harry and Gus fish the same lake together from the same boat. Each morning Harry typically ...
Video: Lipid digestion - mouth, stomach and small intestine

For a complete list of videos, visit our video library