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Chemistry, 21.06.2019 17:00
Why do sodium and neon have vastly different chemical and physical properties despite having similar atomic masses?
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Chemistry, 21.06.2019 20:30
The first element on the periodic table of elements is carbon. a. true b. false
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Chemistry, 22.06.2019 14:00
What is the ph of a solution that has a hydrogen ion concentration of 1.0 * 10 -9 m?
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