Unformatted text preview: of multiple phases or elements. Some examples of homogeneous mixtures are: food coloring and mouthwash. Some examples of heterogeneous mixtures are: ice cubes in water, and mashed, unpeeled potatoes. Chemical changes are changes that result in a chemical reaction. During a chemical change, the composition of matter always changes. Possible clues are a transfer of energy, change of color, production of gas, or formation of the weathers property. Physical changes are changes that do not result in the production of a new substance. If you melt a block of ice, you still have H2O at the end of the change. If you break a bottle, you still have glass. Painting a piece of wood will not make it stop being wood. Some common examples of physical changes are; melting, freezing, condensing, breaking, crushing, cutting, and bending. Special types of physical changes where any object changes state, such as when water freezes or evaporates, are sometimes called change of state operations....
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This note was uploaded on 05/07/2008 for the course CHM 1000 taught by Professor Billings during the Spring '08 term at Greensboro College.
- Spring '08