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
mel-nik [20]
3 years ago
11

6. What mechanisms or events are needed for a star to make heavier elements than iron?

Biology
2 answers:
lana [24]3 years ago
7 0

Answer:

See below.

Explanation:

A star's energy comes from the combining of light elements into heavier elements in a process known as fusion, or "nuclear burning". It is generally believed that most of the elements in the universe heavier than helium are created, or synthesized, in stars when lighter nuclei fuse to make heavier nuclei. The process is called nucleosynthesis.

Our Sun is currently burning, or fusing, hydrogen to helium. This is the process that occurs during most of a star's lifetime. After the hydrogen in the star's core is exhausted, the star can burn helium to form progressively heavier elements, carbon and oxygen and so on, until iron and nickel are formed. Up to this point the process releases energy. <u>The formation of elements heavier than iron and nickel requires the input of energy. </u>Supernova explosions result when the cores of massive stars have exhausted their fuel supplies and burned everything into iron and nickel. The nuclei with mass heavier than nickel are thought to be formed during these explosions.

Liula [17]3 years ago
4 0

Answer:

The nucleosynthesis mechanism is responsible for a star to make elements heavier than iron.

Explanation:

Through the process of fusion or nucleosynthesis in stars, the heavier elements are formed by the fusion of lighter elements. In this process an extensive amount of temperature is needed to make super- fast collisions.

By this process, heavier elements like iron are formed in our stars with ten times more use of matters. Elements like iron formation demands excessive energy. By the Supernova explosions iron is formed.  

You might be interested in
In this reaction _____. A bar chart of potential energy of molecules for reactants and products. The reactants are A B and C D,
REY [17]

Answer:

The products have less potential energy than the reactants

Explanation:

Potential Energy is energy that can be stored in a physical system and has the ability to be transformed into kinetic energy. Potential energy is the name given to the form of energy when it is 'stored', ie it can at any time manifest itself as chemical reactions, where energy is released as a result of the work done by the reaction. . Thus, the reaction product will have less potential energy than the reactants, an example of this is the reaction described in the question above.

4 0
3 years ago
Where are the organisms depicted on a cladogram?
QveST [7]

Answer:

Shows the common ancestor of all living organisms

Explanation:

They're just the lineup of organisms looking for a common ancestor and common traits or where the traits came from.

4 0
2 years ago
Which statement best describes the climate of a city?
o-na [289]
The average annual temperature of Austin TX is 68.5 F
4 0
3 years ago
HELP PLEASE!!! ITS AN EXAM!!!!!!
grin007 [14]
It’s D. Provide support
5 0
3 years ago
Dose anyone know what pairs of structures share the function of reabsorbing water into the body?
Fudgin [204]
The pair of structures that share the function of reabsorbing water into the body us the Hypothalamus and Pancreas.
3 0
3 years ago
Other questions:
  • What does it mean when we say that dna replication is semiconservative
    9·1 answer
  • Biodiversity is one key to the long term sustainability of life on Earth.<br>A. True<br>B. False​
    11·2 answers
  • Which of the following has bacteriochlorophylls and uses alcohols for carbon?
    8·1 answer
  • How does climate change affect the ocean ecosystem?
    13·2 answers
  • Uaggas once lived in South Africa. They are now extinct. People hunted them for their hides and meat. Quaggas fed on grass, whic
    8·1 answer
  • What is the scientific name of rice
    11·2 answers
  • Circadian rhythms can best be described as heartbeats that trigger a change in blood circulation. the regulation of biological c
    9·1 answer
  • 20 points ! multiple choice
    12·2 answers
  • which star is the closest to the earth? how long does it take for light to travel from this star to earth
    12·1 answer
  • The breathing rate of an aquatic animal is more than that of of a terrestrial animal . Why ?​
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!