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Why does a star's hydrogen supply run out?
A star's hydrogen supply runs out because of nuclear fusion in its core. As hydrogen is fused into heavier elements like helium, the star's core temperature increases, causing it to expand and cool. Eventually, the core runs out of hydrogen to fuse, leading to the star's evolution into a different phase.
Why does a star grow larger after it exhausts its core hydrogen?
When a star exhausts its core hydrogen, nuclear fusion in the core stops, causing the core to contract and the outer layers to expand and cool, making the star grow larger. The increase in size is due to the star transitioning into the red giant phase as it starts burning hydrogen in a shell surrounding the core.
Does oxygen and hydrogen explode when ignited?
Oxygen has a tremendously greater attraction for electrons than hydrogen does, so when hydrogen donates an electron to oxygen, there is a substantial release of energy. This energy appears in the form of heat, so the gases (hydrogen, oxygen, and water vapor which is the product of the reaction) will be very hot. Hot gases expand rapidly, hence, they explode.
What is the word equation for the reaction between hydrogen and fluorine?
Hydrogen + fluorine ---> hydrogen fluoride
How many product atoms are there in hydrogen?
There is one atom of hydrogen in a hydrogen molecule.
Why does water expand instead of increaing?
due to hydrogen bond
What type of bonds cause water to expand when it freezes?
Hydrogen bonds cause water to expand when it freezes. As water cools and freezes, the hydrogen bonds between water molecules form a crystalline structure with a more open arrangement than in its liquid state, causing it to expand and become less dense.
Do stars expand in size?
Stars expand in size to become red giants, when they start running low on Hydrogen fuel.
How do you lower the density of the hydrogen gas?
You can lower the density of hydrogen (or any) gas by heating it in a container where it is free to expand, like a balloon.
Does water freeze when it expands?
Yes. Water is one of the few substances on earth that does expand when frozen most other things expand when heated. The hydrogen bonds between the hydrogen and oxygen atoms straighten and the water molecule expands.
Why do red giants expand?
Red giants expand because they have exhausted the hydrogen fuel in their cores and have started fusing helium. This helium fusion causes the outer layers of the star to swell and expand, making the star larger and cooler overall.
Can a star get larger?
Yes. Most stars will expand to many times their original size when they run out of hydrogen in their cores.
How is the red-giant formed?
A red giant forms when a star runs out of hydrogen fuel at its core and starts fusing hydrogen in a shell around the core the core. This causes the star to expand and cool.
What is the mass of 1 milliter of hydrogen atom without the electron?
1 milliliter of hyrdogen ions would not exist, as any number of hydrogen +1 ions would expand rapidly in a vaccum, or react with the environment if there was one.
Why does a star's hydrogen supply run out?
A star's hydrogen supply runs out because of nuclear fusion in its core. As hydrogen is fused into heavier elements like helium, the star's core temperature increases, causing it to expand and cool. Eventually, the core runs out of hydrogen to fuse, leading to the star's evolution into a different phase.
When a star has exhausted its supply of hydrogen?
When hydrogen in the core of the star is depleted, a balance no longer exists between pressure and gravity. Core contracts, temperatures incrase. This causes outer layers to expand and cool. This star is called a GIANT.
Why do carrots explode in the microwave?
The same with beans, they start to expand in too much heat and eventually explode.
