What is the Lewis dot diagram for #H_2O#?

Answer 1

Well we have 6 valence electrons from the oxygen atom......

And 2 valence electrons from the hydrogen atom. And thus we have to distribute 4 electron pairs around the central oxygen atom. VESPER predicts that these 4 electron pairs will assume the shape of a tetrahedron:

The #"electronic geometry"# is tetrahedral to a first approximation. The #"molecular geometry"# is bent with #/_H-O-H~=104.5^@#; the (non-bonding) lone pairs are closer to the oxygen atom, and these tend to compress #/_H-O-H# down from the ideal tetrahedral angle of #109.5^@#.

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Answer 2

The Lewis dot diagram for H2O shows two lone pairs of electrons on the oxygen atom and two bonding pairs, one from each hydrogen atom.

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

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