Difference between revisions of "Hydrogen"

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'''Hydrogen''' (''periodic table symbol:'' H<sup>1</sup>) is a chemical element that can be found in the [[atmosphere]] and in frozen [[water]] on [[Mars]].
 
'''Hydrogen''' (''periodic table symbol:'' H<sup>1</sup>) is a chemical element that can be found in the [[atmosphere]] and in frozen [[water]] on [[Mars]].
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Liquid hydrogen has a density of 70 kg/m3.  Gaseous hydrogen at standard atmospheric pressure and temperature has a density of 0,089 kg/m3.
  
 
==Biological significance==
 
==Biological significance==
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Hydrogen can be produced by [[electrolysis]] of [[water]].
 
Hydrogen can be produced by [[electrolysis]] of [[water]].
  
== Use ==
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==Use==
  
* Hydrogen may be used directly as a [[fuel]] for a propulsion system, or, through the [[Sabatier process|sabatier]] reaction, in the form of [[methane]] for the same purpose.
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*Hydrogen may be used directly as a [[fuel]] for a propulsion system, or, through the [[Sabatier process|sabatier]] reaction, in the form of [[methane]] for the same purpose.
* Hydrogen can be used to react with [[iron ore]] or [[Aluminum|aluminium]] ore to create metals and water.
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*Hydrogen can be used to react with [[iron ore]] or [[Aluminum|aluminium]] ore to create metals and water.
* Hydrogen can be combined with carbon to create [[carbohydrates]], [[amino acids]] and [[hydrocarbons]], the building blocks all all living organisms.
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*Hydrogen can be combined with carbon to create [[carbohydrates]], [[amino acids]] and [[hydrocarbons]], the building blocks all all living organisms.
  
 
[[Category:Materials]]
 
[[Category:Materials]]

Revision as of 19:37, 15 July 2019

H 1
 
Hydrogen

Abundance: 0.03% (as H2O)

Hydrogen (periodic table symbol: H1) is a chemical element that can be found in the atmosphere and in frozen water on Mars.

Liquid hydrogen has a density of 70 kg/m3. Gaseous hydrogen at standard atmospheric pressure and temperature has a density of 0,089 kg/m3.

Biological significance

The metabolism of human beings, animals and microbes depends on water, composed of hydrogen and oxygen. The human body contains about 70% water. Human beings need about 2 liters water per day for drinking, hard working people need even more.

Production

Hydrogen can be produced by electrolysis of water.

Use

  • Hydrogen may be used directly as a fuel for a propulsion system, or, through the sabatier reaction, in the form of methane for the same purpose.
  • Hydrogen can be used to react with iron ore or aluminium ore to create metals and water.
  • Hydrogen can be combined with carbon to create carbohydrates, amino acids and hydrocarbons, the building blocks all all living organisms.