This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: Which of the following reactions is the second reaction in the proton-proton chain? A) 1H + 1H ... (Read 47 times)

laurencescou

  • Hero Member
  • *****
  • Posts: 593
on: Jul 27, 2018
Which of the following reactions is the second reaction in the proton-proton chain?
 
  A) 1H + 1H  2H + e+ +  
  B) 2H + 2H  4He + e+ +  
  C) 2H + 1H  3He +  
  D) 3He + 3He  4He + 1H + 1H

Question 2

Which of the following statements is true of brown dwarfs?
 
  A) They are almost the same size as Jupiter.
  B) They emit most of their energy as gamma rays.
  C) They generate energy by hydrogen fusion.
  D) They are high-luminosity objects.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

CAPTAINAMERICA

  • Sr. Member
  • ****
  • Posts: 325
Reply #1 on: Jul 27, 2018
Answer to Question 1

C

Answer to Question 2

A


laurencescou

  • Hero Member
  • *****
  • Posts: 593
Reply #2 on: Jul 27, 2018
Thank you!


CAPTAINAMERICA

  • Sr. Member
  • ****
  • Posts: 325
Reply #3 on: Jul 27, 2018
Always glad to help...


« previous next »
 

Did you know?

Individuals are never “cured” of addictions. Instead, they learn how to manage their disease to lead healthy, balanced lives.

Did you know?

Approximately 25% of all reported medication errors result from some kind of name confusion.

Did you know?

Your heart beats over 36 million times a year.

Did you know?

More than 150,000 Americans killed by cardiovascular disease are younger than the age of 65 years.

Did you know?

Cocaine was isolated in 1860 and first used as a local anesthetic in 1884. Its first clinical use was by Sigmund Freud to wean a patient from morphine addiction. The fictional character Sherlock Holmes was supposed to be addicted to cocaine by injection.

The light produced by fireflies is the result of a reaction The light produced by fireflies is the result of a reaction
Reaction limited by substrate concentration Reaction limited by substrate concentration
Mechanism of the transaldolase reaction Mechanism of the transaldolase reaction
The RecA strand exchange reaction as shown from single-molecule studies The RecA strand exchange reaction as shown from single-molecule studies
Chain of Transmission of Microorganisms from Host to Victim Chain of Transmission of Microorganisms from Host to Victim
The sum of which decay reactions could convert 209Tl to 205Tl? The sum of which decay reactions could convert 209Tl to 205Tl?
Video: Male Reproductive System - Testosterone

For a complete list of videos, visit our video library