« previous next »

Author Question: The configurations of stereogenic centers in an atactic polymer are: A) regular B) random C) ... (Read 260 times)

TFauchery

  • Hero Member
  • *****
  • Posts: 500
on: Aug 23, 2018
The configurations of stereogenic centers in an atactic polymer are:
  A)
  regular
  B)
  random
  C)
  alternate
  D)
  the same
  E)
  opposite

Question 2

An intermediate in the free radical polymerization of propylene (CH2=CHCH3) initiated by benzoyl peroxide C6H5C(=O)OOC(=O)C6H5 is:
  A)
 
  B)
 
  C)
 
  D)
 
  E)
 

Question 3

The step responsible for chain-branching in free-radical polymerizations is the
  A)
  initiation step.
  B)
  radical coupling.
  C)
  radical disproportionation.
  D)
  chain transfer.
  E)
  radical addition.


miss.ashley

  • Sr. Member
  • ****
  • Posts: 371
Reply #1 on: Aug 23, 2018
Answer to Question 1

b

Answer to Question 2

b

Answer to Question 3

d


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question

TFauchery

  • Hero Member
  • *****
  • Posts: 500
Reply #2 on: Aug 23, 2018
Thanks


miss.ashley

  • Sr. Member
  • ****
  • Posts: 371
Reply #3 on: Aug 23, 2018
Welcome :)


« previous next »
 

Did you know?

Before a vaccine is licensed in the USA, the Food and Drug Administration (FDA) reviews it for safety and effectiveness. The CDC then reviews all studies again, as well as the American Academy of Pediatrics and the American Academy of Family Physicians. Every lot of vaccine is tested before administration to the public, and the FDA regularly inspects vaccine manufacturers' facilities.

Did you know?

Many people have small pouches in their colons that bulge outward through weak spots. Each pouch is called a diverticulum. About 10% of Americans older than age 40 years have diverticulosis, which, when the pouches become infected or inflamed, is called diverticulitis. The main cause of diverticular disease is a low-fiber diet.

Did you know?

About one in five American adults and teenagers have had a genital herpes infection—and most of them don't know it. People with genital herpes have at least twice the risk of becoming infected with HIV if exposed to it than those people who do not have genital herpes.

Did you know?

Over time, chronic hepatitis B virus and hepatitis C virus infections can progress to advanced liver disease, liver failure, and hepatocellular carcinoma. Unlike other forms, more than 80% of hepatitis C infections become chronic and lead to liver disease. When combined with hepatitis B, hepatitis C now accounts for 75% percent of all cases of liver disease around the world. Liver failure caused by hepatitis C is now leading cause of liver transplants in the United States.

Did you know?

The newest statin drug, rosuvastatin, has been called a superstatin because it appears to reduce LDL cholesterol to a greater degree than the other approved statin drugs.

Generalized transduction by random incorporation of bacterial DNA into phage heads Generalized transduction by random incorporation of bacterial DNA into phage heads
Random Random
Centers for disease control and prevention guidelines Centers for disease control and prevention guidelines
Compressing the breast between plates provides a better image of breast tissue. Regular mammograms ... Compressing the breast between plates provides a better image of breast tissue. Regular mammograms ...
The posted octane rating in most high-altitude areas shows regular at 85 instead of the usual 87. The posted octane rating in most high-altitude areas shows regular at 85 instead of the usual 87.
Mixing Regular and N P H Mixing Regular and N P H
Video: Glucagon (glycogenolysis and gluconeogenesis)

For a complete list of videos, visit our video library