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Exam 2 study guide part 2 of 2

by: Elisha Hanson

Exam 2 study guide part 2 of 2 Bio 131

Marketplace > Lake Superior State University > Biology > Bio 131 > Exam 2 study guide part 2 of 2
Elisha Hanson

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This study guide is part 2 of 2 study notes that are already uploaded on here
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This 2 page Study Guide was uploaded by Elisha Hanson on Friday September 30, 2016. The Study Guide belongs to Bio 131 at Lake Superior State University taught by in Fall 2016. Since its upload, it has received 4 views. For similar materials see in Biology at Lake Superior State University.


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Date Created: 09/30/16
Chem 121:                Study Guide for Exam 2   Chapter Three:  Chemical Reactions and the Earth’s Composition Review the Problem Solving Summary on page 120­121. In addition you should:  Recognize that the unit used for the mass of individual atoms or molecules is the  amu (atomic mass unite)  Memorize that a  mole = 6.022 x 10  particles  Be able to calculate the molar mass (g) of a compound  Be able to calculate a formula from percent composition   Know the Law of Conservation of Matter  Know the difference between a subscript and a coefficient and  be able to write  balanced chemical reactions  Be able to create conversion factors to interconvert between mass, moles and  number of particles  Know the difference between an empirical (need % composition) and a molecular  formula (need empirical formula and molecular mass) and be able to determine  both  Be able to identify a combustion reaction and predict the products  Using balanced chemical reactions, create stoichiometric ratios (mole ratio) and  use to solve conversions between moles and grams of reactants and products  Identify a limiting reactant problem and be able to identify the limiting reactant,  calculate the amount of product that can be formed, and the amount of excess  reagent remaining  Be able to calculate the percent yield Equations you will be given:    actual yield %yield  x100% theoretical yield Chapter Four:  Solution Chemistry and the Hydrosphere Review the Problem­Solving Summary on page 184­5  In addition you should:  Know the definition of molarity   Be able to describe the making of a solution with a given molarity or calculate the  molarity of a given solution  Be able to produce a dilute solution from a more concentrated one  Use stoichiometric ratios to determine the molarity of ions in a solution  Define a Bronsted acid and base and identify them  Identify strong and weak electrolytes and non­electrolytes  Be able to write and balance neutralization reactions  Be able to do a titration problem  Apply the solubility guidelines for ionic compounds when writing precipitation  reactions and predicting the products (remember to use the labels (aq), (s), (l), (g)  appropriately)  Know the terms saturated and supersaturated solutions  Define and identify:  oxidation, reduction, oxidizing agent, reducing agent  Be able to write half reactions given a redox reaction  Be able to assign oxidation numbers of ionic and molecular substances  Be able to write and balance redox reactions  Provide molecular, ionic, and net ionic equations for acid­base, precipitation and  redox reactions  Be able to identify spectator ions Information that will be provided:    A periodic table, Table of oxidation state  assignments, Table 4.5, and: M V = M V c c  d d


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