CH 101 Study Guide - Final Guide: Joseph Proust, Metric System, Natural Abundance
8 Dec 2016
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Document Summary
Matter is composed of particles: ex. atoms, molecules, and subatomic particles such as protons, neutrons, and electrons. How the particles come together dictates the physical properties of matter. Matter- anything that has mass and occupies space (has volume) Chemistry- the discipline that seeks to understand matter and its properties. Atoms- basic submicroscopic particles that constitute the fundamental building blocks of ordinary matter. Molecules- substances formed when two or more atoms come together (bond) in specific geometric arrangements: atoms and molecules determine how matter behaves. Matter can be classified according to: its state- its physical form (ex. solid, liquid, or gas) based on what properties it exhibits its composition- the types of particles. Water, alcohol, and gasoline are all substances that are liquids at room temperature. In gaseous matter, atoms or molecules have a lot of space between them: they are free to move relative to one another. Matter can be classified according to its composition: elements, compounds, and mixtures.
