Pure substances are rarely found in nature โ most are mixtures. We need to separate to get useful components, remove impurities, and process food. Methods depend on properties: size, density, magnetic attraction, solubility, boiling point.
How to study this topic
Read the core explanation once without solving.
Open the formula links below and connect them with the topic meaning.
Practice the 10 example pages one by one.
Use the AI ask page for text, voice or image-based doubts.