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Chemistry, 21.06.2019 23:50
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Which of these would be caused by a chemical change? a) the formation of lava. b) sedimantary rock layering over time. c) metamorphic rock forming from igneous. d) metamorphic rock eroding to form sedimentary rock.
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What is a difference between a mixture of elements and a mixture of compounds
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Calculate the pH of a solution of 0.25M H2SO4....
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