chemistry of the environment

purification of water

-filtration (to get ride of solids)

-chlorination (kill bacteria)

use of water at home

-drinking

-cooking

-washing

industrial use of water

-solvent

coolant

transfer heat

composition of air

-nitrogen 78%

-oxygen 21%

-argon 0.9%
-carbon dioxide 0.04%

-other gases (water vapour)

NPK fertilizers

nitrates not removed from water, can cause health issues

industrial waste

may be toxic

untreated sewage / animal waste

lowers oxygen levels & spreads harmful bacteria

industrial coolants

dissolves less oxygen —> killing water life

heat up

endothermic

adding water

exothermic

anhydrous cobalt chloride

blue —> pink

anhydrous copper sulfate

white —> blue

noble gas

monoatomic/full outer energy level —> unreactive

argon

filling light bulbs

helium

filling balloons

source of carbon dioxide

combusted fuels reacting with oxygen

effects of carbon dioxide

traps heat on earth’s surface

source of carbon monoxide

incomplete combustion of fuels due to lack of oxygen

effects of carbon monoxide

fuses with hemoglobin, reducing oxygen circulation / global dimming

source of methane

digestion / decay of organic matter

effects of methane

traps heat on earth’s surface

source of oxides of nitrogen

high temperatures in engine cylinder leading to reaction with oxygen

effects of oxides of nitrogen

acid rain / irritates respitory system / photochemical smog

source of sulfur dioxide

fuels contaminated with sulfur

effects of sulfur dioxide

damages respitory system / acid rain

catalyst converter

lowers number of toxic pollutants emitted into the air (exhaust of a car)

carbon monoxide + oxygen

carbon dioxide

nitrogen monoxide + carbon monoxide

nitrogen + carbon dioxide

nitrogen monoxide

nitrogen + oxygen

hydrocarbons (fuel) + oxygen

carbon dioxide + water