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What is the size of a water molecule?

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A water molecule measure approximately 2.75 angstroms, making it one of the smallest of all molecules. One meter is 10 billion angstroms. The water molecule is shaped like a V, with two atoms of hydrogen extending at an angle of around 104 degrees from an atom of oxygen.

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Full Answer

The bonds connecting the oxygen and hydrogen atoms is nearly 96 picometers in length. Water is classified as a polar molecule based on its electronic structure. The charge of the oxygen is partially negative and the charge of the hydrogen atoms is partially positive, causing water molecules to be strongly attracted to one another. These charges occur due to a bond dipole moment of 1.85 debye.

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