To find the mole of a substance, you take the mass divided by the molar mass of that substance~
Answer:
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Explanation:
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Answer:
They spread apart to fill the enclosed object. In other words they move freely...
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The factor in determining the average atomic mass of an element is:
B or 2 relative abundance of each isotope because the by looking at how many protons , electrons and neutrons the most isotope is of the element has relative abundance.
The electron configuration for magnesium is 1s22s22p63s2
