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)
Answers: 1
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How is the atomic number of a nucleus changed by alpha decay
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Suppose you mix one mole of sulfuric acid (h2so4) with 1 mole of sodium hydroxide(naoh). why does the ph of the solution remain below 7? ( explain so i can get better understanding! )
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Chemistry, 22.06.2019 22:30
Akno3 solution containing 51 g of kno3 per 100.0 g of water is cooled from 40 βc to 0 βc. what will happen during cooling?
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Chemistry, 22.06.2019 22:30
Which of the following molecules is polar? c3h7oh c2h5cooh
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What was first responsible for changing the formerly poisonous atmosphere to an oxygen-rich atmosphe...
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