日韩亚洲一区中文字幕,日韩欧美三级中文字幕在线,国产伦精品一区二区三区,免费在线欧美性爱链接

      1. <sub id="o5kww"></sub>
        <legend id="o5kww"></legend>
        <style id="o5kww"><abbr id="o5kww"></abbr></style>

        <strong id="o5kww"><u id="o5kww"></u></strong>
        1. Ӣҽ̾W(wng) > лW > }ĿԔ

          10տ22(8)ijWWdȤСMNaClw(еs|(zh)CaO)һ|(zh)֔(sh)NaClҺ̈D£  

          Ոش   
          (1)mHCl뵽ҺBl(f)ĻWʽ__________________________
          (2)2Q__________ҺAм^̼cĿ________________
          (3)Ҫ100g|(zh)֔(sh)10ȻcҺõƽͲ߀õIJx________________________________________

          1Na2CO3+2HCl==2NaCl+H2O+CO2  NaOH+HCl==NaCl+H2
          (2) ^V ֳMҺеĚ}    3     裬ӿҺ

          ϵд
          P}

          ĿлW Դ

          10տ22(8)ijWWdȤСMNaClw(еs|(zh)CaO)һ|(zh)֔(sh)NaClҺ̈D£  

           

           

           

          Ոش   

          (1)mHCl뵽ҺBl(f)ĻWʽ__________________________

          (2)2Q__________ҺAм^̼cĿ________________

          (3)Ҫ100g|(zh)֔(sh)10ȻcҺõƽͲ⣬߀õIJx________________________________________

           

          鿴𰸺ͽ>>

          ĿлW Դ

          10տ22(8)ijWWdȤСMNaClw(еs|(zh)CaO)һ|(zh)֔(sh)NaClҺ̈D£  

          Ոش   
          (1)mHCl뵽ҺBl(f)ĻWʽ__________________________
          (2)2Q__________ҺAм^̼cĿ________________
          (3)Ҫ100g|(zh)֔(sh)10ȻcҺõƽͲ߀õIJx________________________________________

          鿴𰸺ͽ>>

          ĿлW Դ2010ȫп}R}|(zh)ķxcἃ Ϣ}

          10տ22(8)ijWWdȤСMNaClw(еs|(zh)CaO)һ|(zh)֔(sh)NaClҺ̈D£  

           

           

           

          Ոش   

          (1)mHCl뵽ҺBl(f)ĻWʽ__________________________

          (2)2Q__________ҺAм^̼cĿ________________

          (3)Ҫ100g|(zh)֔(sh)10ȻcҺõƽͲ⣬߀õIJx________________________________________

           

          鿴𰸺ͽ>>

          ĿлW Դ2010V|ʡտпWԇ棩 }

          222010?տijWWdȤСMNaClwеs|(zh)CaOһ|(zh)֔(sh)NaClҺ̈D£
          Ոش
          1mHCl뵽ҺBl(f)ĻWʽ飮
          22QҺAм^̼cĿǣ
          3Ҫ100g|(zh)֔(sh)10%ȻcҺõƽͲ⣬߀õIJxǣ

          鿴𰸺ͽ>>

          ͬԴ