Why like dissolves like ? Why cannot unlike?
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Explanation:
Like dissolves like" is an expression used by chemists to remember how some solvents work. It refers to "polar" and "nonpolar" solvents and solutes. Basic example: Water is polar. Oil is non polar. Water will not dissolve oil. Water is polar. Salt (NaCl) is ionic (which is considered extremely polar). Like dissolves like, that means polar dissolves polar, so water dissolves salt.
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