Mizzou CHEM 1100 - Exam 1 Study Guide (7 pages)

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Exam 1 Study Guide



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Exam 1 Study Guide

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Exam 1


Pages:
7
Type:
Study Guide
School:
University of Missouri
Course:
Chem 1100 - Atoms and Molecules With Lab
Edition:
1

Unformatted text preview:

Chem 1100 Exam 1 Study Guide Lectures 1 6 Lecture 1 August 25th What is chemistry The study of matter What is matter Something that takes up space and has a mass What is a compound Consist of at least two types of atoms What is a mixture combining of two types of pure substances What is a heterogeneous mixture You can clearly see the outlines of each substance because they don t mix Ex oil and water What is a homogenous mixture The components of the mixture are uniformly distributed throughout the mixture Example Test Questions From Lecture 1 1 Which of the following is an element A Sugar B Milk C Carbon dioxide D Oxygen 2 Grape juice is an example of a A Heterogeneous mixture B Homogenous mixture C Substance D Element 3 A substance that can be broken down into two or more simpler substances by chemical methods is called a A Element B Compound C Proton D Mixture E Isotope 4 Which is not a mixture A A glass of Kool Aid B A jar filled with rocks and sand C Air D Sea Water E Sodium chloride Lecture 2 August 27th Periods run horizontally on the periodic table Groups run vertically on the periodic table and have similar chemical properties The Periodic Table was created to organize they elements They are organized by atomic mass so the bigger the atom the higher it will appear on the table However there are a few exceptions So in that case atomic number always precedes mass Group 1A very reactive metals Group 2A still reactive but less so Metals are on the left and Nonmetals are on the right A list of the metalloids will be provided for you during the test As will a periodic table Atom smallest unit that has elemental properties Molecules can be expressed by a chemical formula and will have a fixed number of every type of atom that s in it Molecular Formulas Has letters and numbers The letters tell you what kind of atom you are dealing with Water H20 Has two different kinds of atoms The numbers tell you how many of each kind of atom you have In H20 you have 2 hydrogen



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