Chemistry, 02.04.2021 22:40 EllaLovesAnime
Which element has 4 electron shells and 2 valence electrons?
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Chemistry, 22.06.2019 18:50
Asample of tin (ii) chloride has a mass of 0.49 g. after heating, it has a mass of 0.41 g. what is the percent by mass of water in the hydrate? %
Answers: 1
Which element has 4 electron shells and 2 valence electrons?...
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