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The primary reaction is hydrogen "burning" and forming Helium

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Q: The primary reaction inside stars changes?
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What is the primary fuel of main sequence stars?

The primary fuel for all stars is hydrogen


What is produced when hydrogen atoms fuse?

A large amount of energy. This naturally occurring reaction happens inside all stars and is called fusion.


Where were helium and and hydrogen formed?

Hydrogen was initially formed in the 'Big Bang' which initiated this universe. Helium is formed by the fusion of hydrogen atoms, inside stars. This reaction is what causes stars to shine, and give off heat.


What two gas are stars made of?

Stars are primarily made of Hydrogen gas (or Hydrogen plasma).The primary reaction in stars to produce energy is called Fusion where two Hydrogen molecules combine to produce one Helium molecule.Thus, a second common element in stars would be Helium (also usually found in plasma form).


Why is Sirius known as the Dog Star?

Not just Sirius - all stars do this. This is due to changes in density in our atmosphere.Not just Sirius - all stars do this. This is due to changes in density in our atmosphere.Not just Sirius - all stars do this. This is due to changes in density in our atmosphere.Not just Sirius - all stars do this. This is due to changes in density in our atmosphere.


What is the reaction that happens in a stars core is?

nuclear fusion


What is the primary composition of a sea stars endoskeleton?

Bananas!


What are island changes?

You use the stars to navigate


Is the proton proton reaction an example of a fission reaction?

No, this is the fusion reaction which occurs in the sun and other stars. See the link below.


Where do you go to look at the stars?

inside


How many stars on the Chicago flag and what color are they?

there are four stars and inside it is red


Do stars give off light as a part of a nuclear fusion reaction in which helium atoms are split into hydrogen atoms?

No. In a fusion reaction, a heavier element is made of a lighter pair by "gluing" them together in a fusion reaction. When we split an atom, that's called atom splitting, or sometimes fission, not fusion. They are opposites. Stars give off light, but the primary fuel in their fusion engines is hydrogen, which they convert into helium. As the hydrogen burns out, the star begins making helium into carbon.