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Chlorides

Unit 5 Answers

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Chemistry
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Physical sciences
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Single displacement reaction
Lead(II) chloride
Chemical equation
Spectator ion

pg. 10 Selected Chemistry Assignment Answers Unit 5: Chemical Equations and Reactions & Stoichiometry Chapter 8: Chemical Equations and Reactions 8.1: Describing Chemical Reactions (Section Review on pg. 266) 5. C3H8 + O2 ? CO2 + H2O 6. C3H8 (g) + O2 (g) ? CO2 (g) + H2O (l) 9. silicon tetrachloride + magnesium ? silicon + magnesium chloride ; SiCl4 (g) + Mg (s) ? Si (s) + MgCl2 (s) 10. magnesium + oxygen ? magnesium oxide ; Mg (s) + O2 (g) ? MgO (s) 8.2: Balancing Chemical Equations (Practice on pg. 269) 1. P4 + 5 O2 ? 2 P2O5 2. C3H8 + 5 O2 ? 3 CO2 + 4 H2O 3. Ca2Si + 4 Cl2 ? 2 CaCl2 + SiCl4 4. 2 Si + CO2 ? SiC + SiO2 (Practice on pg. 271)

lewis structures shapes and polarity

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Lewis Structures, Shapes, and Polarity W 319 Draw Lewis structures and indicate polar or non-polar for ONE of the bonds (point to the bond you are naming): CH4 NCl3 CCl2F2 CF2H2 CH2O CHN PI3 N2O SO2 CS2 CO H2O COF2 N2 O2 H2 Cl2 HF O3 NI3 Everett Community College Student Support Services Program Lewis Structures, Shapes, and Polarity W 319 :(b) (c) : : : :H Cl (d) : :H H C H H : Cl N : :: Cl : Cl : : :: F C :: F : Cl : : :: F C H :: F : (e) (f) H C N (g) (h) : : : : : : :O C H H : l P l : : : :: l : : : :(i) (j) S C S : : : : : :S (k) C S (l) (m) C : : : :: F F (n)

Organic Chemistry Lecture 11b

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Pinacol rearrangement

Chapter 11 * Reaction with HBr ?OH of alcohol is protonated. ?OH2+ is good leaving group. 3? and 2? alcohols react with Br- via SN1. 1? alcohols react via SN2. H 3 O + B r - R O H R O H H R B r Chapter 11 Chapter 11 * Reaction with HCl Chloride is a weaker nucleophile than bromide. Add ZnCl2, which bonds strongly with ?OH, to promote the reaction. The chloride product is insoluble. Lucas test: ZnCl2 in concentrated HCl: 1? alcohols react slowly or not at all. 2? alcohols react in 1-5 minutes. 3? alcohols react in less than 1 minute. Chapter 11 Chapter 11 * SN2 Reaction with the Lucas Reagent Primary alcohols react with the Lucas reagent (HCl and ZnCl2) by the SN2 mechanism. Reaction is very slow. The reaction can take from several minutes to several days. Chapter 11 *
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