This is the chemical structure for soap.
What is unique about the polarity(charge characteristics) of soap?
One end is negative and the other end has no charge.
How does soap work?
When oil and water are both present and mixed with soap, the hydrophobic portion of the soap molecules mixes with the oil, while the hydrophilic portion of the soap molecule mixes with the water. The attraction of the polar end of the soap molecules is strong enough to keep pulling the molecules into the water, so the oil molecules associated with the nonpolar ends are pulled into the water along with the soap molecules. The final arrangement of the soap-oil combination is in the form of micelles, little balls with oil in their middle, coated with soap. The micelles are what actually disperse in the water.
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