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Do the melting and freezing points have to be same for any substance?
I was wondering, do the melting and freezing points have to be the same for any substance?
No, they don't have to be the same for every substance. The melting point is the temperature at which a solid turns into a liquid, while the freezing point is the temperature at which a liquid turns into a solid. These points can vary for different substances based on their molecular structure and other factors.