Chemistry, 16.10.2019 22:30 shelseamorrrow2411
What was first responsible for changing the formerly poisonous atmosphere to an oxygen-rich atmosphere as we have today?
meteor impacts
volcanic gases
earthquakes
photosynethic bacteria (cyanobacteria)
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Chemistry, 21.06.2019 23:00
An electrons position cannot be known precisely only it's probability of being in a certain location can be known
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Chemistry, 21.06.2019 23:00
Plz choose one of the compounds from the table and explain how you know the numbers of atoms in your formula. is it possible for two different compounds to be made from the exact same two elements? why or why not? with a limited number of elements (less than 120 are known), does this mean we also have a small number of compounds or do we have a large number of compounds in this world?
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Chemistry, 21.06.2019 23:00
The agent of mechanical weathering in which rock is worn away by the grinding action of other rock particles is call
Answers: 1
What was first responsible for changing the formerly poisonous atmosphere to an oxygen-rich atmosphe...
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