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Chemistry ll Vocab.

matter the material of the universe
atoms the smallest division of mater that cannot be divided into smaller subsections
compounds can be broken down into elements by chemical processes
molecule a bonded collection of two or more atoms of the same or different elements
elements simpler substances by chemical or physical means
solid a substance in which volume and mass are definite and the particles vibrate
liquid a substance in which particles slide across each other; definite mass but no definite volume
gas substance where particles move freely; no definite volume or mass
physical properties properties that can be observed without changing its chemical make-up
chemical properties properties that can be observed, but the chemical make-up is changed
physical change where a substance phase of matter only changes; not its chemical make-up
mixture when two or more substances are physically combined
alloy subsance that contains a mixture of elements and has metallic properties
pure substance substance without a constant composition
homogeneous mixture mixture where the appearance of the mixture looks the same throughout
solution homogeneous mixture
heterogeneous mixture mixture where the different parts can be identified
distillation a mehod for separating the components of a liquid mixture that depends on differences in the ease of vaporazation of the components
filtration method for seperating the components of a mixture containing a solid and a liquid
Created by: hollismith