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3 years ago

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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Answer:

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Len [333]

The hydrogen deficiency index( HDI) of strigol is = 10

<h3>How to calculate HDI:</h3>

The hydrogen deficiency index is used to measure the number of degree of unsaturation of an organic compound.

Strigol is an example of an organic compound because it contains carbons and hydrogen.

To calculate the HDI using the molecular formula given (C19H20O6) the formula for HDI is used which is:

$hdi = \frac{1}{2} (2c + 2 + n - h - x)$

where C = number of carbon atoms = 19

n= number of nitrogen atoms = 0

h= number of hydrogen atoms = 20

X = number of halogen atoms = 0

Note that oxygen was not considered because it forms two bonds and has no impact.

There for HDI =

$\frac{1}{2} (2 \times 19 + 2 + 0 - 20 - 0)$

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HDI =

$\frac{1}{2} \times 20$

HDI = 10

Therefore, the hydrogen deficiency index of strigol is = 10

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Calculating the mass number for an atom requires that we know the atomic number and the number of protons in the atom’s nucleus. The mass number then gives us the average weight of atoms of a given element. However, as long as the number of protons equals the number of neutrons, the values balance out and we always obtain a whole number for the mass number.

Explanation:

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