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Nonamiya [84]
3 years ago
6

Describe the molecular structure of water, and explain why it is a polar molecule.

Chemistry
2 answers:
weeeeeb [17]3 years ago
7 0
Water is a polar molecule because of its shape
Neporo4naja [7]3 years ago
6 0

Answer:

Each hydrogen atom is bonded to the oxygen atom with a single bond.

The oxygen atom has two lone pairs.

The molecule is bent.

Oxygen is more electronegative than hydrogen.

Each O-H bond is polar.

The molecule is asymmetrical.

The asymmetry and the polar bonds produce an overall molecular dipole.

The oxygen atom has a partial negative charge, and the hydrogen atoms have a partial positive charge.

Explanation:

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Hello!

First you need to calculate q 
<span>delta U is change in internal energy </span>

<span>delta U = q + w </span>
<span>q is heat and w work done </span>
<span>here work was done by the system means energy leaving the system so w is negative </span>

<span>delta U = q + w </span>

<span>q = delta U - w = 6865 J - (-346 J) = 7211 J = 7.211 KJ </span>

<span>q = m x c x delta T </span>

<span>7211 J = 80.0 g x c x (225-25) °C </span>

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