1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
miv72 [106K]
2 years ago
5

In a high-mass star, hydrogen fusion occurs via the choose one: a. spin-spin interaction. b. proton-proton chain. c. cno cycle.

d. gravitational collapse.
Chemistry
1 answer:
Lerok [7]2 years ago
8 0

In a high-mass star, hydrogen fusion occurs via the CNO (Carbon-Nitrogen-Oxygen) cycle.

According to the life cycle of a star, there are three main phases in the life of a star: The initial phase (a quick phase), short phase or supergiant phase and death phase or supernova explosion.

the CNO cycle means Carbon-Nitrogen-Oxygen cycle and this process tale place during main sequence phase.

In this phase, hydrogen fuses into helium as a result of six different reaction taking place inside a star.

The first step of the sequence begins when the nucleus of carbon 12 isotope emits gamma rays after capturing a proton and produces nitrogen-13.

This whole cycle is known as stellar nucleosynthesis.

If you need to learn more about Carbon-Nitrogen Cycle click here:

brainly.com/question/13022835


#SPJ4

You might be interested in
Thirty grams of lead oxide and fifteen grams of ammonia react completely to produce solid lead, nitrogen gas, and liquid water.
Kitty [74]

45 g  Thirty grams of lead oxide and fifteen grams of ammonia react completely to produce solid lead, nitrogen gas, and liquid water.

8 0
3 years ago
Read 2 more answers
A chemistry student needs 60.0 g of tetrahydrofuran for an experiment. By consulting the CRC Handbook of Chemistry and Physics,
Evgen [1.6K]

Answer:

67.492cm^3

Explanation:

To get the volume of tetrahydrofuran needed, what the student need to do is to apply mathematical calculations.

We know quite well that to obtain the volume of a substance, given the mass of the substance and the density of the substance is possible.

The volume of the substance is simply the mass of the substance divided by the density of the substance.

This is thus volume = mass/density

The mass given is the question is 60g while the density given is 0.889g/cm^3

The volume = 60/0.889 = 67.492cm^3

8 0
3 years ago
Asolution has a pH of 8. Which best describes the solution?
alekssr [168]

Answer:

a weak base

Explanation:

pH levels:

0-3 Strong Acid

4-6 Weak Acid

7 Neutral

8-10 Weak Base

11-14 Strong Base

6 0
3 years ago
Read 2 more answers
Two plates slide past each other in opposite directions at a ____ boundary.
Kitty [74]

Answer: plate

Explanation: Plates grinding past each other in opposite directions create faults called transform faults. Powerful earthquakes often strike along these boundaries. The San Andreas Fault is a transform plate boundary that separates the North American Plate from the Pacific Plate.

4 0
3 years ago
Read 2 more answers
Why don't protins stick together
irinina [24]
Because proteins are basically building blocks which mean that they only fit to specific pieces.
3 0
2 years ago
Other questions:
  • To separate a mixture of iron filings and salt, the<br> most efficient method would be
    8·2 answers
  • Three bags containing different number of wooden cubes are dropped from the same height. Which of the following statements is tr
    12·1 answer
  • How can one describe the bond between the two atoms of hydrogen to the one atom of oxygen within a molecule of water (h2o)?
    6·1 answer
  • PLEASE ANSWER
    12·1 answer
  • Who were the terrorists that attacked the united states on September 11, 2001
    7·1 answer
  • Red cabbage is an organic indicator for acids and bases. In the pictures above, which test tube(s) may have ammonia dissolved in
    5·2 answers
  • What kind of bond is the result of the transfer of an electron?
    14·2 answers
  • So confused can someone help ?
    5·1 answer
  • Cell membranes are selectively permeable. This means that A. only water can move freely across the cell membrane. B. any substan
    11·1 answer
  • What name is given to this type of diagram
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!