CHEM 1210 Lecture Notes - Lecture 1: Bromine, Chemical Change, Boiling Point

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CHEM 1210 Full Course Notes
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CHEM 1210 Full Course Notes
Verified Note
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Document Summary

Matter: anything that takes up space and has mass. Chemistry: study of matter, uses observation and experiment to develop an organized body of knowledge. Property: any characteristic that allows us to distinguish types of matter. Elements: 100 atoms, building blocks of matter, cannot be decomposed into simpler things by chemical means. Macroscopic (our world) scale: shape of container up to the volume of the liquid, slightly compressible. Gas: particles are far apart, move at high speed, collide often. Liquid: particles are in close contact, moving rapidly, & sliding over one another. Solid: particles are packed close together, held tightly by strong forces of attraction. Gas: no fixed shape/volume, conforms to volume/shape of container, compressible. Liquid: individual particles are confined to a given volume, no definite shape, assumes. Solid: rigid with a definite shape, very slightly compressible. Examples of stable diatomics: o2, h2, n2, and the halogens (f2, cl2, br2, i2) Compounds: two or more elements in specific ratios.