Chemistry, 01.02.2021 03:00, leahstubbs
When silver coins are found in ancient shipwrecks, they are coated with a black crust. What question could you ask to help you decide whether the silver underwent a chemical change or a physical change?
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What type of reaction is zn + cucl2 → cu + zncl2?
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What if it is did darwin used to support his theory of evolution
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When silver coins are found in ancient shipwrecks, they are coated with a black crust. What question...
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