How are synthetic detergents better than soaps ?

Explanation

**Step-by-Step Solution:**

1. **Understanding Soaps and Synthetic Detergents:**
- Soaps are sodium salts of fatty acids, which are produced from natural fats and oils. They are effective in cleaning but have limitations when used in hard water.
- Synthetic detergents, on the other hand, are man-made surfactants that can be formulated to work effectively in various water conditions.

2. **Reactivity with Hard Water:**
- Hard water contains ions such as calcium (Ca²⁺) and magnesium (Mg²⁺). When soap is used in hard water, it reacts with these ions to form insoluble salts (like calcium stearate), which precipitate out and do not contribute to cleaning.
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