CH 101 Lecture Notes - Lecture 1: Kilogram, Plum Pudding Model, International System Of Units
9 Dec 2016
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Document Summary
Anything that occupies space and has mass: atoms. Basic particles that compose ordinary matter: molecules. Atoms bonded together in specific geometrical arrangements i. e. water molecules. The science that seeks to understand the properties of matter by studying the structure of the particles that compose it. A specific instance of matter: state of matter. Depends on the relative positions of the particles and how strongly they interact with one another (solid, liquid, gas: composition of matter. Depends on the type of particles: pure substance. Made up of only one type of particle: mixture. Substance composed of 2 or more particles in proportions that can vary from one sample to another: element. Cannot be chemically broken down into simpler substances: compound. Composed of 2 or more elements: heterogeneous mixture. Composition varies from 1 region of the mixture to another: homogeneous mixture. A tentative interpretation or explanation of observations.
