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How many total moles of ions are present in 0.0158 mol of nacl?
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Scientists discovered fossils in several layers of the earth you see here. they found fossils of algae, snails, and clams in layer d. given that information, where do you think they found fossil evidence of simple land plants and amphibians?
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How would you use IR to distinguish between liquid bromine (Br2) and gaseous hydrogen bromide (HBr)?...
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