CHEM QUIZ 6 - Hydrogen Naturally occurs as H2 Highly flammable Low boiling point because of its low molar mass and nonpolarity Major industrial

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Hydrogen Naturally occurs as H 2 Highly flammable Low boiling point because of its low molar mass and nonpolarity Major industrial source of hydrogen gas is its rxn with methane CH4+H2O CO + 3H2 Major use of hydrogen is in the Haber process Behaves as a nonmetal, forming covalent compounds with other nonmetals and forming salts with very active metals Most important covalent hydride is water If hydrogen gains 1 electron, then it attains noble gas structure, therefore it has substantial electro negativity Most abundant element in the universe Greater electronegativity than other elements in group 1 Can oxidize metals Reduce oxides Group 1 Alkalai Metals Easily lose electron Reacts with water (and almost anything else) Lithium is the strongest reducing agent o Effectively attracts water molecules o Lowest ionization energy Lithium as solid has a higher melting point than the rest of the group Form ionic compounds with nonmetals Potassium more readily loses its valence electron in the gas phase than lithium,
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This note was uploaded on 03/19/2009 for the course CH 301 taught by Professor Fakhreddine/lyon during the Spring '07 term at University of Texas at Austin.

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CHEM QUIZ 6 - Hydrogen Naturally occurs as H2 Highly flammable Low boiling point because of its low molar mass and nonpolarity Major industrial

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