Chemistry, 21.04.2021 01:20 leahstubbs
Rock layers were found containing 30 kg of radioactive elements that had a half life of 5 million years. How old were the rock layers if scientists determined that the samples had originally contained 120 kg of the radioactive materials?
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Answer asap need by wednesday morning calculate the ph of 0.036m naoh best answer will be brainliest
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If one fission reaction of a uranium-235 atom produced two neutrons, how many neutrons would be released if the chain reaction occurred three more times?
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Calculate the percent composition by mass of each element in al(oh)3. use at least three significant figures.
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Asample of sea water contains 6.28g of sodium chloride per litre of solution. how many milligrams of sodium chloride would be contained in 15.0ml of this solution?
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