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science chp-3 sec-3

TermDefinition
substances matter that has the same composition and properties ex. elements and compounds
compound substance formed when elements combine has properties different from the elements that make it up NaCl-SALT
mixture combination of substances that have NOT formed a new substance and whose proportions or ratios can be changed without changing its identity ex. -sand and water air blood lava cinnamon sugar
homogeneous mixture the same throughout you can't see the different parts in the mixture milk and food coloring
heterogeneous mixture NOT the same throughout you can see the different parts a chocolate chip cookie
formula tells which elements make up a compound and how many uses a subscript to tell the number of atoms H20- WATER H2O2- HYDROGEN PEROXIDE
Created by: kkrahulik
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