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practical application
fill in the blank
since ancient times, the most important aspect of chemistry has been its _________ _________
descriptive chemistry
survey of the chemicals and process that are important to our daily lives
hydrogen
the most abundant element in the universe
protium
lighter isotope of hydrogen; no neutrons
deuterium
the heavier isotope of hydrogen; one neutron
tritium
isotope of hydrogen that is very rare in nature but can be readily produced in nuclear reactors; two neutrons
hydrogen
colorless, odorless, tasteless gas that is very flammable
steam reforming
commercial method of preparing hydrogen by reacting methane with steam
electrolysis
process of passing an electric current through an electrolyte to cause a nonspontaneous reaction
ammonia
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the primary use of hydrogen is the synthesis of _________
hydrogenation
addition of hydrogen to double or triple bonds
heavy water
the oxide of deuterium, D2O is called this
hydrogen
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________does take the form of an alkali metal under extremely high pressure
Note 
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