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Chemistry of the Environment

Freshwater

biodegradable:

organic material that bacteria are able to oxidize

Green Chemistry

green chemistry:

chemistry that promotes the design and application of chemical processes that are compatible with human health and that preserve the environment

Outer Regions of the Atmosphere

The World Ocean

Photodissociation:

rupture of a chemical bond from absorption of a photon

Photoionization:

when a molecule absorbs radiation, resulting in the loss of an electron

reverse osmosis process:

  • pretreatment- remove solids and adjust pH
  • pressurization- raise the water pressure so it can pass through the membranes
  • separation- the membranes stop salts from passing through
  • stabilization- pH adjustment and degasification

Earth's Atmosphere

Chemistry of the Troposphere

acid rain:

water that has become acidic because of absorption of oxides produced by human activity.

photochemical smog:

undesirable substances produced by sunlight on an urban area polluted with automobile emissions

hemoglobin:

iron-containing protein in red blood cells that transports oxygen in blood,

Ozone in the Upper Atmosphere

chlorofluorocarbons(CFCs):

compounds composed entirely of chlorine, fluorine, and carbon.

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