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Chapter 2 - Coggle Diagram

- - - - elements and compounds are the only pure substances
        
        Element
        
        simplest form of matter with unique properties
        
        Compound
        
        two or more elements chemically combined in a fixed ratio
- - - - Describes the substances and what happens to them in the chemical change
        
        Chemical equation- writes out what’s going on
        
        Parts to a chemical equation
        
        Reactant-starting substances
        
        Product- new substances made by chemical change
        
        Knowing it's a chemical reaction
        
        Energy change
        
        Light or heat given off or taken in
        
        Odor change
        
        Bubbles produced
        
        Color change
        
        Precipitate formed-solid in solution
- - - - Composition is not uniform throughout
    - - Composition is unifrom throughout
    - - Filtration
        
        technique that uses a porous barrier to separate a solid from a liquid
      - Distillation
        
        technique that is based on differences in boiling points for substances involved
      - Crystallization
        
        results in formation of pure solid particles of a substance from a solution containing dissolved substance
      - Chromatography
        
        separates the components of a mixture on the basis of each to travel or be drawn across the surface of another material