Answer:
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Explanation:
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Charles' law (also known as the law of volumes) is an experimental gas law that describes how gases tend to expand when heated.
Melting, vaporization, boiling, and sublimation.
Iron filings can be attracted by the magnet whereas salt can not. So the mixture can be separated by a magnet
Answer: 1.414x10^24 molecules in 94.4g MgO
Explanation: molar mass MgO 40.204
molecules in 40.204 g MgO = avogadro number
molecules in 94.4 g MgO = (94.4/40.204)*avogadro number
(94.4/40.204)*6.02214076*10^23 = 14.14x10^23
