1. Mixtures and Solutions

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

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

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

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

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

7. 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