« previous next »

Author Question: Why might nitrogen monoxide (NO) concentrations decrease as the day progresses? A) Morning rush ... (Read 56 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?

As many as 28% of hospitalized patients requiring mechanical ventilators to help them breathe (for more than 48 hours) will develop ventilator-associated pneumonia. Current therapy involves intravenous antibiotics, but new antibiotics that can be inhaled (and more directly treat the infection) are being developed.

Did you know?

Asthma cases in Americans are about 75% higher today than they were in 1980.

Did you know?

When blood is deoxygenated and flowing back to the heart through the veins, it is dark reddish-blue in color. Blood in the arteries that is oxygenated and flowing out to the body is bright red. Whereas arterial blood comes out in spurts, venous blood flows.

Did you know?

All adverse reactions are commonly charted in red ink in the patient's record and usually are noted on the front of the chart. Failure to follow correct documentation procedures may result in malpractice lawsuits.

Did you know?

Although the Roman numeral for the number 4 has always been taught to have been "IV," according to historians, the ancient Romans probably used "IIII" most of the time. This is partially backed up by the fact that early grandfather clocks displayed IIII for the number 4 instead of IV. Early clockmakers apparently thought that the IIII balanced out the VIII (used for the number 8) on the clock face and that it just looked better.

Tubule permeabilities and concentrations of the filtrate in the loop of Henle and collecting duct. Tubule permeabilities and concentrations of the filtrate in the loop of Henle and collecting duct.
Charlie Chaplin in The Gold Rush. Charlie Chaplin in The Gold Rush.
Threshold Levels of Carbon Monoxide Threshold Levels of Carbon Monoxide
Excessive video gaming decrease social and physical development in a child Excessive video gaming decrease social and physical development in a child
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: Role of the respiratory system - effect of altered ventilation rates

For a complete list of videos, visit our video library