CH 221 Exam 1 Study Guide
CH 221 Exam 1 Study Guide CHEM 221
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This 2 page Study Guide was uploaded by Adeline Fecker on Monday October 17, 2016. The Study Guide belongs to CHEM 221 at University of Oregon taught by Deborah Exton in Fall 2016. Since its upload, it has received 8 views. For similar materials see Chemistry 221 in Chemistry at University of Oregon.
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Date Created: 10/17/16
Adeline Fecker October 14th, 2016 CH 221 Exam #1: Study Guide Vocabulary in Chapter 1 Very important terms are in bold Conceptual Understanding Defining features of the states of matter Solid (fixed, rigid shape, does not conform) Liquid (varying shape, conforms to container, has upper surface) Gas (varying shape, fills entire container, no surface) 1 Rectangular Randomly arranged Randomly 3D shape Move fluidly arranged Close together Close together Move freely Clear Disorganized Spread out organization Disorganized Distinction between physical and chem ical Physical properties characteristics a substance shows by itself changes/properties without changing into or interacting with another substance Ex. Ice (solid)-------Water (liquid) Chemical properties characteristics a substance shows as it changes into or interacts with another substance(s) Ex. Water + electric current = hydrogen + oxygen Physical changes: No change in composition Chemical changes: C hange in composition (substance becomes a different substance) 1http://www.sparknotes.com/testprep/books/sat2/chemistry/chapter5.rhtml Nature of potential and kinetic energy Poten tial energ The energy due to the osition of the object relative to other objects inetic energy The energy due to the otion of an object 1. When energy is converted from one form to the other, it i onsumed not destroyed 2. Situations of lower energy are favored over situations of high energy Process of the scientific method Memorize SI Units and prefixes Distinguish between intensive and extensive properties Rules for significant figures and rounding Accuracy vs. Precision Define characteristics of elements, compounds and mixtures Understanding the three mass laws Postulates of Dalton’s atomic theory Discovery of atomic structure Parts of an atom Format of the periodic table and location of major groups Determining ionic vs covalent compounds Difference between empirical and molecular formulas
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