What is the energy of an electromagnetic wave with a frequency of 8 x 10^12
Hz?
A. 4.2 x 10-2...
Answers: 1
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The sum of the oxidation numbers in a neutral compound is always
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The molar mass of iron(fe) is 55.8 g/mol. what is the mass in grams of 2.25 moles of iron?
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