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Chemistry 1: Air and Water (The evolution of the Atmosphere (Phase 2 -…
Chemistry 1: Air and Water
Air and Water
Solids
Liquids
Gas
Chemical Formulas
Prefixes
Water - H20
Ammonia - NH3
Carbon Dioxide - CO2
Hydrogen - H
Chlorine -Cl2
Oxygen - O2
The evolution of the Atmosphere
Phase 1 - Volcanoes Gave out Gases
mostly co2 and virtually no oxygen
volcanoes released nitrogen
ammonia and methane
Phase 2 - Oceans, Algae and Green Plants absorbed CO2
water vapour condensed and formed oceans
Lots of CO2 was dissolved into the oceans
chemical reactions happened with CO2 to form carbonate precipitates he formed sediments on the seabed
Cyanobacteria followed by green plants and algae evolved and absorbed Co2 to carry out photosynthesis to produce glucose
Phase 3 - Green Plants and Algae produced Oxygen