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Tooth paste contains a small quantity of...

Tooth paste contains a small quantity of oil. Is it for any reason connected with the surface tension?

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**Step-by-Step Solution:** 1. **Understanding Surface Tension**: Surface tension is the property of a liquid's surface that allows it to behave like a stretched elastic membrane. It is caused by the cohesive forces between liquid molecules. 2. **Role of Water in Toothpaste**: Toothpaste is primarily composed of water, which has a relatively high surface tension. This high surface tension can make it difficult for the toothpaste to spread and effectively clean surfaces, such as teeth. 3. **Addition of Oil**: When a small quantity of oil is added to toothpaste, it interacts with the water molecules. Oils typically have lower surface tension compared to water. ...
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