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Chemistry, 22.06.2019 03:00, ian2006huang
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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Chemistry, 22.06.2019 11:40, tatemelliott
Calculate the number of kilojoules to warm 125 g of iron from 23.5°c to 78.0°c.
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Do you know the correct answer?
2. A solution with [H3O+] = 1 x 10-7 M is
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