This preview has intentionally blurred sections. Sign up to view the full version.
View Full Document
Unformatted text preview: CHEM 120A – Autumn 2011 Review for Exam 2 Chapter 6 – Chemical Reactions and Quantities Section 6.1 – Chemical Reactions  Know the types of visible evidence that a chemical reaction has occurred  Know the symbols used in writing chemical equations  Write a balanced chemical equation from the formulas of reactants and products  Extra Exercises: 6.1, 6.3, 6.5 Section 6.2 – Types of Reactions  Be able to identify a chemical reaction as either a combination, decomposition, single replacement or double replacement reaction  Extra Exercises: 6.9, 6.11 Section 6.3 – OxidationReduction Reactions  Be able to define the terms oxidation and reduction  Identify which species in a reaction is oxidized and which is reduced  Extra Exercises: 6.13, 6.15, 6.17 Section 6.4 – The Mole  Know what is meant by a collection term  Know Avogadro’s number (6.02 x 10 23 )  Be able to use Avogadro’s number to determine the number of particles in a given number of moles  Calculate the number of moles of element in a formula  Extra Exercises: 6.23, 6.25, 6.27, 6.29 Section 6.5 – Molar Mass  Be able to determine the molar mass of a substance  Calculate the molar mass of a compound  Use the molar mass to convert between grams and moles  Extra Exercises: 6.31, 6.33, 6.35, 6.37, 6.39, 6.41, 6.43 Section 6.6 – Mole Relationships in Chemical Equations  Know what is meant by conservation of mass  Know what information is available from a balanced chemical equation  Write molemole factors from an equation  Use molemole factor from balanced chemical equation to calculate the moles of another substance in the reaction  Extra Exercises: 6.45, 6.47, 6.49 Section 6.7 – Mass Calculations for Reactions  Be able to calculate the mass in grams of one substance in a reaction when given the mass of another substance in that reaction  Extra Exercises: 6.51, 6.53, 6.55, 6.57 Section 6.8 – Percent Yield and Limiting Reactants  Know the difference between actual and theoretical yield  Be able to calculate the percent yield of a product, or use the percent yield to determine starting amounts  Be able to identify a limiting reactant when given quantities of two or more reactants  Use the limiting reactant to calculate the amount of product formed (moles or mass)...
View
Full
Document
 Fall '11
 LeahMiller
 Reaction

Click to edit the document details