�ݺ�ߣ

This document discusses purification and separating mixtures through various processes. It covers selective permeability and diffusion, as well as osmosis, active transport, engulfing, and exocytosis. Methods for separating mixtures include using magnets, vaporization through evaporation and boiling, filtration, and distillation. Distillation involves vaporization and condensation. The document also briefly mentions petroleum and some of its products obtained through separation.Read less