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Darina [25.2K]
2 years ago
14

Explain how you determine the number of valence electrons that should be used in the dot structure for silicon dioxide and state

the shape of the molecule.
Chemistry
1 answer:
anzhelika [568]2 years ago
5 0

Answer:

The electrons in the outermost shell are used to determine the dot structure.

Explanation:

According to Lewis, the structure of a molecule could be determined by accurately determining the number of electrons on the outermost shell of the Central atom. Silicon has four valence electrons on its outermost shell and it is the central atom in silicon dioxide. Silicon dioxide is a linear molecule as it forms two double bonds with oxygen.

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Explanation:

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Elements x and y form 2 binary compounds. In the first 14.0 g of x combines with 3.0 g of y. In the second, 7.00 g of x combine
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second compound

Let molar mass of x is = X

Let molar mass of y is = Y

Moles of x in second compound = Mass / molar mass = 7 / X

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7 / X : 4.5/ Y = 1:1

Therefore

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