Mixtures and Solutions

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Presentation transcript:

Mixtures and Solutions

Mixture 2 or more substances PHYSICALLY mixed together parts can be separated through physical means Parts retain their properties

Solutions A homogenous (evenly distributed) mixture of 2 or more substances A solute is dissolved in the solvent Salt = solute Water = solvent

Alloy A solid solution of 2 or more substances that includes atleast 1 metal Steel: Iron and Carbon Brass: copper and zinc

Physical Properties Properties that can be observed without changing the chemical structure of the substance ex: color, size, luster, melting point

chemical properties Properties that are observed by changing the chemical structure of a substance Ex: Heat of combustion, Reactivity with water

Chemical or Physical? water boils at 100 degrees Celcius Diamonds cut glass water can be separated by hydrolysis into hydrogen and oxygen Sugar dissolves in water vinegar reacts with baking soda Wood is flammable