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        1. ijW(xu)ƌW(xu)dȤСMоľl(f)ȼcwe?jn)?sh)P(gun)ϵn}ȡŒ(sh)(yn)E
          ȡ5ֻ250mLƿ5ֻƿзքeb25mL50mL75mL100mL125mLˮëƬwסξ̖(ho)12345ȡһֻ250mLƿ̖(ho)0治bˮ
          ÷ֽ^(gu)䣨H2O2ķȡȡͨ^(gu)ˮ15̖(ho)ƿеˮȥ
          یǵľlβ05̖(ho)ƿ^쵽F(xin)Ӌ(j)㔵(sh)(j)±
          ƿ(bio)̖(ho) 0 1 2 3 4 5
          ƿwe?jn)?sh)s 21.0% 28.9% 36.8% 44.7% 52.6% 60.5%
          ľlĠr ԭһ(hu)Ϩ ΢ (f)ȼ (f)ȼ
          ԇشІ(wn)}
          1(sh)(yn)в÷ֽ^(gu)䣨H2O2ķȡ䷴(yng)ĻW(xu)ʽ
           

          2(j)ό(sh)(yn)Œ(sh)f(shu)_
           
          (yng)ĸ
          Aֻڼвʹǵľl(f)ȼ
          Bƿwe?jn)?sh)52.6%r(sh)ǵľl܏(f)ȼ
          CֻҪھͿʹǵľl(f)ȼ
          3ͨ^(gu)(sh)(yn)ܵóĽY(ji)Փǣ
           
          
          4(j)W(xu)^(gu)ķ(yng)eһf(shu)ĽY(ji)Փ
           
          1(j)(yng)W(xu)ʽ
          2(j)^쵽F(xin)Ӌ(j)㔵(sh)(j)
          3-4|(zh)ȼij̶cĝP(gun)ԽȼԽңȼFzȼȣ
          ⣺1^(gu)䣨H2O2ȡl(f)(yng)ĻW(xu)ʽ 2H2O2
           MnO2 
          .
           
           2H2O+O2
          2(j)ό(sh)(yn)Œ(sh)Կƿwe?jn)?sh)52.6%r(sh)ǵľl܏(f)ȼʴ𰸞飺B
          3ͨ^(gu)(sh)(yn)ɵóĽY(ji)ՓĝԽȼԽң(yng)F(xin)ͷ(yng)ĝP(gun)
          4ڿ՚ȼl(f)΢ĵ{(ln)ɫ棬ȼl(f){(ln)ɫFzڿ՚вȼ܄ȼȣ
          ʴ𰸞飺12H2O2
           MnO2 
          .
           
           2H2O+O2
          2B
          3ĝԽȼԽң
          4ڿ՚мӟFztᣬȼ䣮
          c(din)u(png)}ҪP(gun)֪R(sh)(du)n֪R(sh)M(jn)һ̽}P(gun)IҪջW(xu)ʽĕ|(zh)ȼr(sh)Č(sh)(yn)F(xin)ȷ֪R(sh)
          (x)(c)ϵд
          P(gun)(x)}

          ĿлW(xu) (li)Դ

          ijW(xu)УƌW(xu)dȤСMоľl(f)ȼcwe?jn)?sh)P(gun)ϵn}r(sh)ȡŒ(sh)(yn)Eȡ5ֻ250mLƿ5ֻƿзքeb25mL50mL75mL100mL125mLˮëƬwסξ̖(ho)12345÷ֽ^(gu)䣨H2O2ķȡȡͨ^(gu)ˮ15̖(ho)ƿеˮȥیǵľlβ15̖(ho)ƿ^쵽ĬF(xin)Ӌ(j)㔵(sh)(j)
          ƿ(bio)̖(ho) 1 2 3 4 5
          ƿwe?jn)?sh) 28.9% 36.8% 44.7% 52.6% 60.5%
          ľlĠr ΢ (f)ȼ (f)ȼ
          ԇشІ(wn)}1(sh)(yn)в÷ֽ^(gu)䣨H2O2ķȡ䷴(yng)ķ̖(ho)_(d)ʽ
          2H2O2
           MnO2 
          .
           
          2H2O+O2
          2H2O2
           MnO2 
          .
           
          2H2O+O2

          2(j)ό(sh)(yn)Œ(sh)f(shu)_
          B
          B
           (yng)ĸ
          Aֻڼвʹǵľl(f)ȼ
          Bƿwe?jn)?sh)ڻ52.6%r(sh)ǵľl܏(f)ȼ
          CֻҪھͿʹǵľl(f)ȼ

          鿴𰸺ͽ>>

          ĿлW(xu) (li)Դ

          ijW(xu)ƌW(xu)dȤСMоľl(f)ȼcwe?jn)?sh)P(gun)ϵn}ȡŒ(sh)(yn)E÷ֽ^(gu)䣨H2O2ȡһȻijNõ5ֻƿҎ(gu)250mLwe?jn)?sh)ξ̖(ho)12345󌢎ǵľlβ15̖(ho)ƿ^쵽F(xin)Ӌ(j)㔵(sh)(j)±
          ƿ(bio)̖(ho) 1 2 3 4 5
          ƿwe?jn)?sh) 28.9% 36.8% 44.7% 52.6% 60.5%
          ľlĠr ΢ (f)ȼ (f)ȼ
          ԇشІ(wn)}
          1Ո(qng)ָõ5ƿwe?jn)?sh)ͬĿ՚ľw
          5ֻƿзքebһ25mL50mL75mL100mL125mLˮˮռëƬwס
          5ֻƿзքebһ25mL50mL75mL100mL125mLˮˮռëƬwס

          2(j)ό(sh)(yn)Œ(sh)f(shu)_
          B
          B
          (yng)ĸ
          Aֻڼвʹǵľl(f)ȼ
          Bƿwe?jn)?sh)52.6%r(sh)ǵľl܏(f)ȼ
          CֻҪھͿʹǵľl(f)ȼ
          3(sh)(yn)|(zh)ȼij̶cĝP(gun)ԽȼԽңՈ(qng)eһ(sh)(yn)(ni)ݺ͌(sh)(yn)F(xin)±У
          (sh)(yn)(ni) (sh)(yn)F(xin) (sh)(yn)Y(ji)Փ
          ԽȼԽ

          鿴𰸺ͽ>>

          ĿлW(xu) (li)Դ x

          ijW(xu)ƌW(xu)dȤСMоľl(f)ȼcwe?jn)?sh)P(gun)ϵn}ȡŒ(sh)(yn)Eȡ5ֻ250mLƿ5ֻƿзքeb25mL50mL75mL100mL125mLˮëƬwסξ̖(ho)12345÷ֽ^(gu)䣨H2O2ķȡȡͨ^(gu)ˮ1-5̖(ho)ƿеˮȥیǵľlβ1-5̖(ho)ƿУ^쵽ĬF(xin)Ӌ(j)㔵(sh)(j)±
          ƿ(bio)̖(ho) 1 2 3 4 5
          ƿռwe 25mL 50mL 75mL 100mL 125mL
          ľlĠr ΢ (f)ȼ (f)ȼ
          ԇشІ(wn)}
          1^쵽ĬF(xin)֪ʹǵľl(f)ȼСwe?jn)?sh)
          3
          3
          ̖(ho)ƿ
          4
          4
          ̖(ho)ƿ֮g]
          2(sh)(yn)в÷ֽ^(gu)ķȡ⣬䷴(yng)ֱ_(d)ʽ
          ^(gu)
          MnO2
          ˮ+
          ^(gu)
          MnO2
          ˮ+
          (yng)͌
          ֽⷴ(yng)
          ֽⷴ(yng)

          3(j)ό(sh)(yn)Œ(sh)f(shu)_
          B
          B

          Aֻڼвʹǵľl(f)ȼ
          Bƿwe?jn)?sh)52.6%r(sh)ǵľl܏(f)ȼ
          CֻҪھͿʹǵľl(f)ȼ
          4(dng)4̖(ho)ƿռ100mLr(sh)ôƿЌ(sh)Hռwe?jn)?sh)
          52.6
          52.6
          %(sh)(yn)|(zh)ȼij̶cĝP(gun)ԽȼԽңO(sh)Ӌ(j)һ(g)(sh)(yn)(li)f(shu)ˆ(wn)}ɪ(jing)(l)2֣

          鿴𰸺ͽ>>

          ĿлW(xu) (li)Դ

          ijW(xu)ƌW(xu)dȤСMоǵľl(f)ȼcwe?jn)?sh)P(gun)ϵn}УȡŒ(sh)(yn)E

          ȡ5ֻ250 mLƿ5ֻƿзքeb25 mL50 mL75 mL100 mL125 mLˮëƬwסξ̖(ho)12345

          ÷ֽ^(gu)䣨H2O2ķȡȡͨ^(gu)ˮ1~5̖(ho)ƿеˮȥ

          یǵľlβ1~5̖(ho)ƿ^쵽ĬF(xin)Ӌ(j)㔵(sh)(j)±

          ԇشІ(wn)}

          1(sh)(yn)в÷ֽ^(gu)䣨H2O2ķȡԓ(yng)ĻW(xu)ʽ_(ki)_________________________________

          2(j)ό(sh)(yn)Œ(sh)f(shu)_ǣ    

          A. ֻڼвʹǵľl(f)ȼ

          B. ƿwe?jn)?sh)52.6%r(sh)ǵľl܏(f)ȼ

          C. ֻҪھͿʹǵľl(f)ȼ

          3(sh)(yn)|(zh)ȼij̶cĝP(gun)ԽȼԽՈ(qng)eһ(sh)(yn)(ni)ݺ͌(sh)(yn)F(xin)±У

          鿴𰸺ͽ>>

          ͬ(x)(c)