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. ijW(xu)dȤСMͬW(xu)ڌDaDBӺþ·l(f)F(xin)СݲDbDBӺþ·l(f)F(xin)Сݕɴ˵óĽY(ji)Փ_ǣ
          ANaClwǷ늽|(zh)
          BNaClˮxƄӵx
          CNaClʹҺеˮxx
          DNaClҺ늽|(zh)

          AڠB(ti)»ˮҺ܌(do)늵Ļ늽|(zh)NaCl늽|(zh)Ae`
          BNaClǏ늽|(zh)ˮȫxNaClˮxƄӵxB_
          CNaClˮxƄӵxڏᏊA}ˮxoӰ푣Ce`
          DȻcҺ늽|(zh)De`
          xB
          (x)ϵд
          P(gun)(x)}

          ĿлW(xu) ԴԔ }

          1D傀EA昋(gu)ɵĈD傀EA(ni)քeC2H5OHCO2Fe2O3FeCl3KOHN|(zh)DB|(zh)ɚwһཻABCD(yng)ķ(bio)(zhn)̖

          BăɷN|(zh)늽|(zh)______(bio)(zhn)̖ͬ______
          ڈDBăɷN|(zh)܉໥(yng)______ٻ(yng)͵______(yng)
          N|(zh)еijһ|(zh)cijNᷴ(yng)еһN|(zh)tԓ(yng)xӷʽ______
          Ýğȡ25mlsˮӟvμN|(zh)еijһ|(zh)ҺӟҺwʼtɫõķɢϵQ______CԓɢϵɵČԭ______
          2(yng)ñ^Vͬһ|(zh)͌W(xu)(x)ʹ÷ķ̎톖}eһ߀ɴ˼ˣ磺
          CO2SiO2SO2SO3CO2+CaOH2=CaCO3+H20SO3cNaOH(yng)ķʽ______
          NaHCO3NaHSO3NaHSγɵʽ}NaHCO3+HClTNaCl+H20+CO2NaHCO3+NaOHTNa2CO3+H20NaHSքecHClNaOH(yng)ķʽ____________

          鿴𰸺ͽ>>

          ĿлW(xu) ԴԔ x}

          |(zh)늽|(zh)ǣ
          ANaHCO3BO2CNaOHҺ

          鿴𰸺ͽ>>

          ĿлW(xu) ԴԔ x}

          иN|(zh)(do)ǣ
          Bʯˮ
          CFzDwʳ}

          鿴𰸺ͽ>>

          ĿлW(xu) ԴԔ x}

          늽|(zh)Һ(do)ďҪQڣ
          AxӵĝBҺĝCҺweD늽|(zh)

          鿴𰸺ͽ>>

          ĿлW(xu) ԴԔ x}

          з(yng)xӷ(yng)ǣ
          AȻcҺеyҺ
          BcȚȼ
          CFƬ~Һ
          DcҺcϡᷴ(yng)

          鿴𰸺ͽ>>

          ĿлW(xu) ԴԔ x}

          ЈD_ӳ(yng)ǣ
          AٞpH=13NaOHҺвˮ
          BڞMnO2мһH2O2Һ
          C۞CaCl2}ĻҺеμNa2CO3Һ
          Dܞ錢ͨҺ

          鿴𰸺ͽ>>

          ĿлW(xu) ԴԔ x}

          £ijҺˮxcH+=110-13mol/LԓҺǣ
          SO2ˮҺNH4ClҺNaNO3ҺNaOHҺ

          鿴𰸺ͽ>>

          ĿлW(xu) ԴԔ x}

          f_ǣ
          A100rKW=10-12˜ضPH=6Һһ@
          B25r0.1mol/LNaHSO3ҺpH=4fHSO3-ˮҺֻx
          CNH4ClCH3COONaNaHCO3NaHSO4ˮˮxдM(jn)
          D25r10mL0.1mol/LCH3COOHҺc5mL0.1mol/LNaOHҺҺ2cNa+TcCH3COO-+cCH3COOH

          鿴𰸺ͽ>>

          ͬ(x)Դ