« previous next »

Author Question: The overall result of the proton-proton chain is ________. A) 6 H becomes 1 He + energy B) p + p ... (Read 25 times)

Kthamas

  • Hero Member
  • *****
  • Posts: 546
on: Jul 27, 2018
The overall result of the proton-proton chain is ________.
 
  A) 6 H becomes 1 He + energy
  B) p + p becomes 2H + energy
  C) 4 H becomes 1 He + energy
  D) individual protons are joined into long chains of protons

Question 2

Which hypothetical universe will eventually contract, if there were no dark energy?
 
  A) the universe with 1.5 times the critical density of matter
  B) the universe with 1.0 times the critical density of matter
  C) the universe with 0.5 times the critical density of matter


amanda_14

  • Sr. Member
  • ****
  • Posts: 342
Reply #1 on: Jul 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

Kthamas

  • Hero Member
  • *****
  • Posts: 546
Reply #2 on: Jul 27, 2018
Both answers were spot on, thank you once again


amanda_14

  • Sr. Member
  • ****
  • Posts: 342
Reply #3 on: Jul 27, 2018
Great! Please up vote :D


« previous next »
 

Did you know?

The largest baby ever born weighed more than 23 pounds but died just 11 hours after his birth in 1879. The largest surviving baby was born in October 2009 in Sumatra, Indonesia, and weighed an astounding 19.2 pounds at birth.

Did you know?

Patients who have undergone chemotherapy for the treatment of cancer often complain of a lack of mental focus; memory loss; and a general diminution in abilities such as multitasking, attention span, and general mental agility.

Did you know?

Multiple sclerosis is a condition wherein the body's nervous system is weakened by an autoimmune reaction that attacks the myelin sheaths of neurons.

Did you know?

Prostaglandins were first isolated from human semen in Sweden in the 1930s. They were so named because the researcher thought that they came from the prostate gland. In fact, prostaglandins exist and are synthesized in almost every cell of the body.

Did you know?

About 600,000 particles of skin are shed every hour by each human. If you live to age 70 years, you have shed 105 pounds of dead skin.

Principles of amplification of selected fragments of DNA by polymerase chain reaction cycling. Principles of amplification of selected fragments of DNA by polymerase chain reaction cycling.
Activation energy Activation energy
The Sun and the radiant energy The Sun and the radiant energy
The oceans continue to absorb most of the excess energy trapped by greenhouse gases The oceans continue to absorb most of the excess energy trapped by greenhouse gases
Misfolding or refolding of some proteins can result in disease Misfolding or refolding of some proteins can result in disease
Elongation of the growing polypeptide chain during translation Elongation of the growing polypeptide chain during translation
Video: What is Cholesterols? Introduction to Lipoproteins

For a complete list of videos, visit our video library