28ijУWnСMˆDbƂȻXw.ԓwȻXҺ.baL.b鲣.пɹxõԇ:ٶiw,X,Ȼcw,ܝ,ݝ},sˮ,߉Aʯ.Yϱ:ȻXܟ180rA.ڳĿ՚ˮ.

 

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14B C 15BD 16AD 17D 18A 19C 20A 21BC

22(1) 45   (2) U/vD  

(3)        ҈D

·D(։·ɱ“oҪأȱһҪؾ÷)

23

gʾDZ渽ٶȣMʾǵ|mʾǵlǵ|mʾDZijһw|fɺţDڶ

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Ovʾڶ䵽DZrٶQֱv1ˮƽԞv0

                 3

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ϸʽ          4

2418֣

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ֱ\

                   m/s2                              3֣

   2                                                                                 

                                 3֣

        ܉ED                                          2֣

   3                                        

                                           2֣

        O΢PcMňٶوA\

                                                 1֣

                    1֣

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                  T              2֣

2520֣⣺1򻬉KcС|ײЙCеغ㣬ϵyغKcСײQٶ                                             (4)

СQֱƽDCеغOKпxs0

                              (4)

s025 m                        (2)

2KcnײOС\ӵcrٶȞvn

С,:                  (2)

                                                      (2)

KУ          (4)

٢ڢʽ:                   (2)

Ϫһ2008D2009WόWĩԇ

ƾCϿԇ}W

6.D  7.C  8.C  9.B  10.B  11.D  12.A  13.B

26.1        12

(2)C2H2(g) + O2(g) = 2CO2(g) + H2O(l); H = 1300kJ/molȲϵ1÷֣

(3)H2O2  H+ + HO2;  HO2H+ + O22

(4)12 5

27. 1Br SO32

2HS  HCO3   AlO2 Ba2+Cu2+

3SO32  +  Cl+  H2O    SO42  +  2H+  2Cl

     2Br  +  Cl Br+  2Cl

28. 1Bмsˮ͛]a¶ˣP]b΢Abеğƿ􌧹aеҺһĸ߶ȣtյ÷֣

24H+ + 2Cl + MnO2    Mn2+ + Cl2+ 2H2O  ۡ

3ϴCl2еHClwڰȫƿ2֣

4ֹAlCl3Yܡ2֣

5wAlCl3^}Ȼsˮϡ2֣

6                𰸣2֣  ߣ1֣δȚֹ՚еˮME

291ȻuDCOOHDOH                     

   2    ٢ۢ                                    

   3HODCH2DCH2DOH                                

OH

OH

H2SO4

  

52HOOCDCH2DCHDCOOH               2H2O+

 

                                                      

 

 

 

 

1DD5  BDBCA

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(3) (4)ȥ׌QLĂȸ

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