UNIT 12 Chemical Bonding

Transcription

1 Name Perid CRHS Academic Chemistry UNIT 12 Chemical Bnding Practice Prblems Due Date Assignment On-Time (1) Late (7) Warm'ÿ Up C Ntes, Hmewrk, xam Reviews and Their KYS lcated n CRHS Academic Chemistry Website:

2 Unit 12 HW Page 2 f 12 WARM-UPS Day 1 Day 7 Day 2 Day 8 Day 3 Day 9 Day 4 Day 1 Day 5 Day 11 Day 6 Day 12

3 HW 12.1 INTRODUCTION TO CHMICAL BONDING Unit 12 HW Page 3 f 12 1) 2) 3) Hw d atms frm bnds? What electrns are invlved in chemical bnding? What is the Octet Rule? ÿ/ÿ/ÿ]3-ÿ ÿ'/f}/ÿ SO 4) What are the three types f A. 'ÿ fÿ.j k C.,, B, 5) Identify the fllwing statements as either True r False Inic bnds frm between tw metals Inic bnds frm between tw nnmetals Inic bnds frm between metal and nnmetal T < Cvalent Bnds frm between tw nnmetals Cvalent bnds frm between tw metals Cvalent bnds frm between metal and nnmetal 6) Fill in the table using the electrnegativity tables fund n page 11. Atms Li and Br Difference in lectrnegativity Type f Bnd H and S C and K and F P and CI S and I Mg and I Sn and F [,O 3,Z,9 (,3 <_,l_ b" G... <Tz>t} 4ÿ-- " '""ÿ ÿ,-,ÿ " 'ÿ'-"

4 HW 12.2 COVALNT, IONIC, AND MTALLIC BONDING Unit 12 HW Page 4 f 12 Cvalent Bnds 1) What is the Representative Particle fr cvalent cmpunds? 2) Hw is the Octet Rule achieved fr atms in a cvalent bnd? 3) Write the name r frmula f the fllwing cvalent cmpunds: Diphsphrus tetrxide Carbn tetrachlride ÿtjl cj I Inic Bnds What is the Representative Particle fr inic cmpunds? \ 7) What is a catin? 8) What is an anin? %1 Metallic Bnds 9) Label the belw statements as TRU r FALS. a. {Z Metals (like steel) are made f ONLY peridic table metals, with n nn-metals present. b. F Valence electrns in a metal are stuck t the atm and d nt mve. c.f The catins in a metal frm a unique crystal pattern called a "sphere" 1) What gives metals the ability t be d[;awn int w!re r hammered int shapes? a ius ' t! II) What hldsÿthe catins in a metal tgether7 i" (]' i:,, '",ÿÿ. (i... ÿ? 7;,i 12) List fur unique prperties f metals:ÿ, *

5 Unit 12 HW Page 5 f 12 I 18) Fill in the summary table t--._ " e. '*" - c c ÿ = = t'- Q. < v "I._- "5 3 > z "4.. =z! N r- < L " e,- % %..J d d : " tn r-._._> t- O,,i--., rnÿ J 9 LU >... J k d --.I m rn _ t,- rn._> ÿ rÿ cÿ r,n.ÿ ÿ..) ÿ -,g=ÿ IJJ

6 Unit 12 HW Page 6 f LWIS STRUCTURS FOR COVALNT MOLCULS Cvalent Hlecules 1, Hw many ttal electrns d tw atms in a duble bnd share? 2. Hw many ttal electrns d tw atms in a triple bnd share? 3. UNDRLIN the central atm in the fllwing cvalent cmpunds a. PF3 b. H2 c. CH4 d. HCN e. NH3 f. CO2 g. BBr3 h. SjCl4 4. Draw the Lewis structure f each f the fllwing MOLCULS, F2 HCI #. valenceelectrns/tÿ # valence electrns C./ Nitrgen triidide /ÿ/ÿ3 FORMULA Water /--7ÿ.ÿ FORMULA " TS Z6" # valence electrns ÿ" HCN # valence electrnsz CH3I l,-ct- z! # valance eÿatrns [ # valence electrns Silicn tetrachlride ÿ,ÿ FORMULA Silicn dixide ÿ" ÿ ÿ_.ÿ FORMULA f, s,",ÿ ÿ- "-,.,.) (L... 'ÿ # valence electrns ÿ Lÿ rÿ(...j.'iÿ(ÿ)r,ÿ # valence electrns I ÿ-'ÿ

7 12.4 LWIS STRUCTURS FOR IONIC COMPOUNDS Unit 12 HW Page 7 f Draw Lewis Structures fr the fllwing LMNTS # Strntium Brn Silicn Brmine 2, Draw the Lewis Structures fr the fllwing CATIONS Calcium in Ptassium in Barium in Lithium in 3. Draw the Lewis Structures fr the fllwing ANIONS / CI r.1 ' ÿ.,< Oxide in Chlride in Selenide in Phsphide in 4. Draw the Lewis Structures fr these IONIC COMPOUNDS Lithium brmide Ptassium xide I ÿ{,,ÿÿ frmula i,ÿ ÿ.. Barium chlride Calcium phsphide,,, <'ÿ,,ÿ tk. f., ; L_ ÿ 'i: J /,v ÿ._)ÿ i frmula Iÿ (ÿ ÿ ÿ ÿ.ÿ frmula \ÿc! :ÿ 1, </ #:ÿ

8 Unit 12 HW Page 8 f Draw Lewis structure f each f the fllwing POLYATOMIC IONS Z ':/ NO /., Ot'"" t I"ÿ-)- ÿ V I ":1 C" # valence electrns 'ÿ" Lÿ Phsphate in ÿ4ÿ--:ÿ {ÿ ÿ FORMULA # valence electrns ÿ"ÿ Sulfite in 5:ÿ -2, FORMULA I t / et L / / ti I,! t I #valence electrns3 l Carbnate in / FORMULA # valence electrns ÿ'.-ÿf'i / NH Cÿ"./ "... t4 -!-/, ',, #valence electrns (-.,"' # valence electrns

9 Unit 12 HW Page 9 f MOLCULAR GOMTRY 1. Define Mlecular Gemetry Write ut the meaning f VSPR 3. Cmplete the fllwing table" tm ".D I'N -r tÿ T e f "\if'% ',,:r- :ÿ tÿ cd <ÿ :--% Pq \_X <.--_Lÿ ii U C5 =t I=1 i c c ru -ÿ.ÿ kfl

10 Unit 12 HW Page 1 f Determine if the fllwing mlecules are plar r nnplar using the chart fund in Unit 12 Ntes n page 18. H2 HF CCI4 H2 <: [ÿ <]fo rj V... 3,l t._! i ÿ < -... NH3 HI PCI3 S2..,,,/Sÿ" ÿ'7' ÿ" <s e (HrcN ÿt: /(+ÿ, ) : -c I ÿi' <...!... / /,v :Yÿ < [ (

11 Unit 12 HW Page 11 f 12 Name In Name In acetate C2H32-1 r CH3CO-1 hypchlrite CIO-1 ammnium NH4+1 nitrate NO3-1 ca r b n ate CO3"2 nit rite N 2-1 chlrate CIOÿ-1 perchlrate CIOZI chlrite Cl2-1 permanganate M n4-1 chrmate Cr42 phsphate PO4-3 cyanide CN-1 phsphite POÿ-3 dichrmate Cr27-2 silicate Si32 hydrgen carbnate HC3-1 sulfate S4-2 hydrxide OH-1 sulfite S3-2 lectr negativity (N) Values H 2.1 Li Be B C N O F 1. 1,5 2, ,5 4. Na Mg AI Si P S CI Difference in lectrnegativity >1.7 Type f Bnd Nnplar-Cvalent Plar-Cvalent Inic K Ca Ga Ge As Se Br Rb Sr In Sn Sb Te I Cs Ba TI Pb Bi

12 Unit 12 HW Page 12 f 12.,. ÿ 2Z G 8 tÿ 4 :ÿ k-i 9 re) :1 < i± {! 3 hÿ ) ",ÿ- G9 c {;ÿ ÿ, " ÿÿ ÿ ÿ.ÿ :g!;' ÿ-,.ÿ C rÿ " cÿ _A