ࡱ> u|{~9( / 0DTimes New Roman@bbv 0b( 0D[SOes New Roman@bbv 0b( 0O DArialNew Roman@bbv 0b( 0O"0DWingdingsRoman@bbv 0b( 0O@DSymbolgsRoman@bbv 0b( 0OPDeckYSOlgsRoman@bbv 0b( 0O`DўSOSOlgsRoman@bbv 0b( 0O ` .  @n?" dd@  @@`` 1a          0@87 Cʚ;2Nʚ;g45d5dv 0bppp@ <4!d!d` 0bAb<4dddd` 0bAb? %&3,{ASNz xeCQ } .   P15 1 '` 15 2 US(STir'`( 15 3CQ }STirv4l'` )) 15 1 xeCQ }'` @ N5uP[~g ns2np2 NYeg4*N5uP[qQ(u b1YS5uP[b+4T+2N C +4,+2(CO),-4 Si +4, Ge +4,+2 Sn +4,+2 Pb (+4),+2 ,geCQ }8^ xQWv/fSnTPb :vj                   ^ё^\vckؚN3z[ CO-Nv N͑. OC g 2N Ca"ONNa"NI{5uSO }6q T7hX[(W N͑. FO;ml'`kN2'YvY :_v؏S'` b.e_gYvN/f,{NcvC Cb.rQsp3, sp2,spBgS NHNe_Q[NvQhTV gQ*Np .YCH4 CCl4COCl2HCN C2H2 C C.'Y 346KJmol @bNxSNeP0Wޏ0 Si Si N2/3C C Expvpeϑ NY C O<Si O. Ex/fN'lCQ },@bNgbYpev\w65 "       V                                    , -------------------------------!x'` %Ge2+ Sn2+ Pb2+ % $N'`(-N) OPx !GeO2 Sn4+ Pb/00 x'`  . P, 3       SnS(Yj) PbS(ў) SnS2(Ğ) H+! !S2-,OH- SmH+! !OH- OH-bS2-! !Smx n Nn n Nn n Sn(SnCl62-)U,)       '             &     Z1uCeCQ }v5uMOVS 0 Sm=2.38-5.74=3.36<0 4"US9eS)n^eHe GVP2-P1 dwX2.260 dёRw3.515 Vd0 ؚ)nؚS15000P'YlSR  +      ?                 Si:NO)n N N;ml NN4l0zzl0xS^FON:_'lSBR :_x\O(u Si+O2=SiO2 Si+2X2=SiX4((WF2-Nweqp) Si+2OH-+H2O!SiO32-+2H2!H(  !              Sn:!u pp!Sn(|+g) }v! ! aW 286K bW 434K gW FOTё(YPb) NSu !u ([hV-N8^+TPb)_      )             xeCQ }6RS  Si: SiCl4(bp,330K)+Mg(bZn)!Si Ge: GeCl4(bp,356K)+H2O!GeO2 GeO2+H2!Ge+H2O SiCl4: SiO2+2Cl2+2C!SiCl4+2CO GeO2,TiO2,B2O3,Al2O3_N g{|?" dd@,?lPd@   Z l<@ d`"  n?" dd@   @@``@n?" dd@  @@``PR    @ ` ` p>> vn (  ^N y   "yZ  S B7 C DEHFPv @?q 6 6 n(dx  G b q %(@"B y2   `G1?"  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