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Minchanka [31]
3 years ago
6

What role do valence electrons play in the formation of compounds from elements?

Chemistry
1 answer:
n200080 [17]3 years ago
6 0
Valence electrons predict how many bonds will happen: a single bond, double bond, or triple bond. Also, the valence electrons tell us what type of bond will happen: ionic, covalent, or metallic.
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How many moles are in 3.45 g of Na2O?Round your answer to three significant
Neporo4naja [7]

Answer: There are 0.056 moles present in 3.45 g of Na_{2}O.

Explanation:

Given : Mass = 3.45 g

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Hence, moles of Na_{2}O (molar mass = 61.98 g/mol) is as follows.

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