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 94 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?

This year, an estimated 1.4 million Americans will have a new or recurrent heart attack.

Did you know?

Asthma is the most common chronic childhood disease in the world. Most children who develop asthma have symptoms before they are 5 years old.

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?

In ancient Rome, many of the richer people in the population had lead-induced gout. The reason for this is unclear. Lead poisoning has also been linked to madness.

Did you know?

Eat fiber! A diet high in fiber can help lower cholesterol levels by as much as 10%.

The patient is undergoing an allergy skin test by receiving subdermal inoculations of allergens. Inf The patient is undergoing an allergy skin test by receiving subdermal inoculations of allergens. Inf
Water chain in cytochrome f Water chain in cytochrome f
Immune Reactions Immune Reactions
The Chain of Survival. The Chain of Survival.
A typical reaction in which NAD+ acts as an oxidizing agent A typical reaction in which NAD+ acts as an oxidizing agent
Light-independent reactions in C3 plants. Light-independent reactions in C3 plants.
Video: Atrial natriuretic peptide (vasodilation) & Aldosterone

For a complete list of videos, visit our video library