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Chemistry, 19.02.2021 16:10, janeou17xn
A certain rock has a mixture of several different elements. It contains 33g of zinc, 22g of iron and 16g of oxygen. What percentage of the rock, by mass, is zinc?
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Answers: 1
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Chemistry, 22.06.2019 14:00, ashlynneboogs0056
8.98 dm3 of hydrogen gas is collected at 38.8 °c. find the volume the gas will occupy at -39.9 °c if the pressure remains constant.
Answers: 3
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A certain rock has a mixture of several different elements. It contains 33g of zinc, 22g of
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