Why is H2O a polar bond?

Answer 1

The #Delta#Electronegetivity of H2O is 1.4

To answer this question, you need to look at the electronegativity of the atoms.

What you need to know about the electronegativity is the following:
If #Delta#Electronegetivity >2: The bond is ionic, this means that the molecule is fully charged.

If #Delta#Electronegetivity between 0,4 and 2: The bond is polar covalent, this means the molecule is partially charged.

If #Delta#Electronegetivity <0,4: The bond is nonpolar covalent, this means that the molecule is electronically symmetrical (no charge).

The chart in which you can find the electronegativity of the elements is:

The final group doesn't have electronegativity, therefore it isn't shown in the chart.

Using this information you can calculate the #Delta#Electronegetivity of H2O by subtracting the highest value of the lowest value:
#3.5 - 2.1 = 1.4#

This means that H2O is a polar covalent.

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Answer 2

H2O is a polar molecule because of its bent shape and the unequal sharing of electrons between oxygen and hydrogen atoms. Oxygen is more electronegative than hydrogen, so it attracts the shared electrons more strongly, creating a partial negative charge on the oxygen atom and partial positive charges on the hydrogen atoms. This uneven distribution of charge results in a polar covalent bond, making H2O a polar molecule.

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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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