Chemistry Study Guide 2
Chemistry Study Guide 2 CH1213
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This 3 page Study Guide was uploaded by alb1081 on Thursday September 29, 2016. The Study Guide belongs to CH1213 at Mississippi State University taught by Dr. Xiu Xu in Fall 2016. Since its upload, it has received 44 views. For similar materials see Chemistry 1 in Chemistry at Mississippi State University.
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Date Created: 09/29/16
Study Guide for Chem 1 Exam over Chapter 4 Chemical Equations o Reactants on left side, products on right side o Know how to create them from symbols into words and words into symbols o Include physical states – gas, liquid, solid, aqueous Water is not aqueous, it is a liquid o Know how to balance equations Equations must be balanced to obey law of conservation of mass o Identify types of reactions: Synthesis - two or more combine to form a product Decomposition – one reactant forms two or more products Combustion – substance burns in the presence of oxygen and produces CO2 and H2O Double Displacement – can be a precipitation reaction or a molecular product Single Displacement – a solid metal exchanges to produce a different solid metal, hydrogen, or halogen Neutralization – acid/base to get a salt and water Condensation – two molecules combine and water is released o Electrolytes – a substance that dissolves in water to yield a solution that conducts electricity Ionization – a molecular compound forms ions when dissolved Strong electrolytes dissociates completely, weak electrolytes don’t Precipitate Reactions o Memorize solubility rules o Write out molecular ionic equations and net ionic equations o Know how to find the precipitate of a reaction Acid/Base Reactions o Know strong acids and strong bases Strong Acids: HCl, HBr, HI, HNO3, H2SO4, HClO4 Strong Bases: LiOH, NaOH, KOH, Ca(OH)2, Ba(OH)2, Sr(OH)2 Strong acids and strong bases are strong electrolytes o Different types of acids Bronsted acids are proton donors Bronsted bases are proton acceptors o Be able to create neutralization reactions Redox Reactions – a chemical reaction in which electrons are transferred from one reactant to another o Oxidation is the loss of electrons o Reduction is the gain of electrons o Assign oxidation numbers o Know oxidation rules o Activity Series Understand how metal activity series work Predict reactions from series o Identify if a reaction is redox and balance it o Label oxidizing and reducing agents Mole Ratios and Chemical Reactions o Convert mass/moles to other compounds through balanced chemical equations Limiting Reagents o The reactant first used up in a chemical equation is the limiting reagent o Use product method to determine limiting reagent and excess reagent o Know how to go backwards to figure out the amount of excess reagent left over o Percent Yield Theoretical yield – amount of product that forms when all the limiting reactants react to form the desired product (calculated) Actual yield – the product actually produced from a reaction (experiment) Percent yield – tells what percentage the actual yield is of the theoretical yield Know how to calculate theoretical yield, actual yield, and percent yield Know how to do problems with an impure reagent Titrations and Gravimetric Analysis o Be able to do titration calculations o Figure out missing molarity o Calculations with solution stoichiometry
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