Preceptor REVIEW 4 (Show)

Preceptor REVIEW 4 (Show) - Chemistry 151 Exam 4 Review,...

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Chemistry 151   Exam 4 Review, Spring 2008 -Presented by the Preceptors
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Reaction Types 1] Identify the type of the following chemical reaction using   one term from set A  [ Complete but do NOT balance  the equations]                              Set A a) Ca  +  O         CaO  Oxidation Reduction Combustion JW Use for set A Precipitation Acid-base  neutralization Oxidation- reduction Gas forming Combustion
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Reaction Types 1] Identify the type of the  following chemical reaction using   one term from set B:  [ Complete but do NOT balance  the equations]    You may see terms like Set A on the final!                     Set B                b)  CH 3  COOH  +  KOH       CH3COO- K+    +H2O       Acid Base   JW Use for set A Use for set B Single  displacement Precipitation Double  displacement Acid-base  neutralization combustion Oxidation- reduction decomposition Gas forming combination Combustion
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Balancing Equations 2] Balance the following equation:                           _1_Mg 3 N 2    +  _4_H 2 SO 4     _3_MgSO 4   + _1_(NH 4 ) 2 SO 4 The SUM of all the coefficients (both reactants and  products) is:  a)    4       b) 6        c) 12       d)  9        e) 18 JW
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Redox Reactions 3]  In the reaction     Na   +  H 2 O    NaOH  +  H 2         The  oxidizing  agent  is:     A) Na            B)  H 2 O        C)   NaOH        D)   H 2             E)  not a REDOX JW
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Light Bulb Conductivity 4a]  Compounds  A and B  both contain Carbon, Hydrogen and Oxygen.  They were tested using a light bulb conductivity apparatus and the  results are recorded.      Solution: Pure liquid A     Pure Liquid B Liquid  A dissolved  in  water Liquid B  dissolved in  water Light Bulb  Observa tion: Does not light up Does not light  up Does not light  up Dim Which describes the compounds? A) A is ionic; B is a strong acid B) A is a soluble non-electrolyte:  B is a weak acid A) A is weak acid ; B is strong acid              D) A is covalent ; B is an alcohol  JW
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Strong and Weak Acids Dissociation 4b] Which of the following pictures represents a strong  and a weak acid in an aqueous solution?   Acid:  Acid: DP Weak Acid Strong Acid
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Strong and Weak Acid Dissociation 4c]  What would HCl and HF look like in a aqueous solution? Will  the light bulb light up or not? If it lights up will it be bright or  dim for each of them?    Acid: Acid: DP
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This note was uploaded on 06/12/2008 for the course CHEM 151 taught by Professor Staff during the Spring '08 term at University of Arizona- Tucson.

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Preceptor REVIEW 4 (Show) - Chemistry 151 Exam 4 Review,...

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