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Fuels

Fuels. Coal (C) Mostly pure carbon C + O 2  CO 2 Gasoline (C 8 H 16 ) A mixture of hydrocarbons C 8 H 16 + 12 O 2  8 CO 2 + 8 H 2 O Natural Gas (CH 4 ) Hydrocarbon (methane) CH 4 + 2 O 2  CO 2 + 2 H 2 O Hydrogen (H) A chemical element 2 H 2 + O 2  2 H 2 O. Bad!. Good!.

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Fuels

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  1. Fuels • Coal (C) • Mostly pure carbon • C + O2 CO2 • Gasoline (C8H16) • A mixture of hydrocarbons • C8H16 + 12 O2 8 CO2 + 8 H2O • Natural Gas (CH4) • Hydrocarbon (methane) • CH4 + 2 O2  CO2 + 2 H2O • Hydrogen (H) • A chemical element • 2 H2 + O2 2 H2O Bad! Good! Greenhouse gases water

  2. Snowflake Photos Courtesy of Prof. Kenneth G. Libbrecht California Institute of Technology http://snowcrystals.com

  3. “It’s kind of funny. No two grains of sand are exactly alike, either. But nobody cares about that.” -- Kenneth Libbrecht

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