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CSU - CHEM 111 - Class Notes - Week 1

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CSU - CHEM 111 - Class Notes - Week 1

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background image CHEM 111 - CSU Week 01 Notes StudySoup - Avery 1.1: States of Matter Matter: anything that has mass and occupies space Mass: the property that defines the quantity of matter in an object Chemistry: the study of the composition, structure, and properties of matter and of the  energy consumed or given off when matter undergoes a change Solid: a form of matter that has a definite shape and volume Liquid: a form of matter that has a definite volume but takes the shape of its container Gas: a form of matter that has neither definite volume nor shape, and that expands to fill it’s  container Atom: the smallest particle of an element that retains the chemical characteristics of the  element Molecule: a collection of atoms chemically bonded together Chemical Bond: a force that holds two atoms in a molecule or a compound together Sublimation: transformation of a solid directly into a gas Deposition: transformation of a gas directly into a solid Three states of water: Ice: particles are held together in a rigid, three-dimensional crystalline pattern Water: particles are close together but are free to tumble over one another Vapor: particles are far apart, largely independent of one another, and able to move  freely Ice—>Melting—>Water—>Vaporizaton—>Vapor Vapor—>Consensation—>Water—>Freezing—>Ice 1.3: Classes of Matter Pure Substance: matter that cannot be separated into simpler matter by a physical process Physical Process: a transformation of a sample of matter, such as a change in its physical  state, that does not alter the chemical identity of any substance in the sample Element: a pure substance that cannot be separated into simpler substances by any  chemical process Compound: a pure substance that is composed of two or more elements linked together in  fixed proportions and that can be broken down into those elements by some chemical  process
background image CHEM 111 - CSU Week 01 Notes StudySoup - Avery Chemical Formula: a notation for representing the elemental composition of a pure  substance using the symbols of the elements Subscripts: indicates the relative number of atoms of each element in the substance Law of Constant Composition: the principle that all samples of a particular compound  always contain the same elements combined in the same proportions Mixture: a combination of pure substances in variable proportions in which the individual  substances retain their chemical identities and can be separated from one another by a  physical process Homogeneous Mixture: a mixture in which the components are distributed uniformly  throughout and have no visible boundaries or regions Solution: another name for homogenous mixture; often a liquid Heterogenous Mixture: a mixture in which the components are not distributed uniformly, so  that the mixture contains distinct regions of different compositions                                                    Immiscible Liquids: combination of liquids that are not able to mix with each other (ex:  water and oil) All Matter Pure  Substance Mixture Compound Element Homogeneous Heterogenous

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School: Colorado State University
Department: Chemistry
Course: General Chemistry I
Professor: Ruth Tucker
Term: Summer 2016
Tags: Chemistry, general, Colorado, state, and University
Name: Chem 111 - Week 01 Notes
Description: These notes are a combination of lecture notes and book notes.
Uploaded: 07/22/2016
6 Pages 24 Views 19 Unlocks
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