yeji_basic_info

__**Hydrogen** Basic Information__

atomic number : 1 symbol : H state : gas physical properties : colorless, odorless,nonmetallic, tasteless. chemical properties : highly flammable with the molecular formula H2 atomic mass : 1.00794 compunds : water (H2 + O) which uses as drink,wash, etc. hydroxide (H + O) which uses in argriculture, and industry.


 * Hydrogen can be produced from water and natural gas.
 * Hydrogen is the lightest element.

__**Hydrogen** uses__


 * used to make ammonia, methanol, gasoline, heating oil.
 * used as rocket fuel.
 * used to make circuits, soaps, luvricants, cleaners.
 * used to fuel omterma; cpmbustion engine vehicled.
 * it can be used to fuel fuel-cell vehicles in future.
 * it can replace natural gas for heating and cooling homes and povering hot water heaters.