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Matter (Mixtures (methods of used for separate mixtures (magnetism,…
Matter
Mixtures
Homogenous Mixtures
same uniform appearance+composition throughout
Heterogenous Mixtures
the compositions varies from position to position in the sample
are combinations of two or more substances
no definite or costant composition
Example
Atmosphere
mixture of gases
Wine
mixture of mostly ethanol and water
Sea water
mixture of salt dissolved
Smoke
tiny solid particles in atmosphere gases
methods of used for separate mixtures
magnetism
distillation
filtration
sifting
evaporation
Pure Substances
Chemical Elements
substances wich cannot be broken down into anything simpler
Elements are made up of particles (atoms)
symbols are made up of one or two letters
Compuonds
substances formed when two or more elements are chemically joined
composition of compounds is shown by a chemical formula