Fossil evidence indicates that was the first known living organism.
cyanobacteria
archaeb...
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Chemistry, 21.06.2019 17:30
What is the percentage by mass of silicon (si) in iron aluminum silicate (fe3al2(sio4)3)?
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Compare and contrast physical changes with chemical changes.
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What is the morality of 2.50 l of solution that contains 1.85 mol of anhydrous sodium tetraborate?
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