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. }ĿijW(xu)СMW(xu)DʾbM(jn)Fcˮ(yng)Č(sh)(yn)îa(chn)M(jn)һȡFeCl36H2Ow

          (1)bBаl(f)(yng)ĻW(xu)ʽ_________________________

          (2)bEеĬF(xin)_________________________________________

          (3)ֹͣ(yng)BsȡеĹw^ϡ}ַ(yng)^Vz(yn)VҺFe3IJ________________________________________

          (4)ԓСMW(xu)VҺȡFeCl36H2OwO(sh)Ӌ(j)

          Eмˮ__________________________________

          𰸡3Fe4H2O(g)Fe3O44H2 ɫw׃tҶ˹ܱˮ ȡVҺ׵KSCNҺ^ҺǷ׃tɫ Fe2Fe3

          1Fcˮߜ·(yng)F͚⣬(yng)ĻW(xu)ʽ

          2bEкɫ~߀ԭɼtɫ~ͬr(sh)ˮ

          3(j)r(ji)Fęz(yn)KSCNҺ^Ƿ׃t

          4(j)̽Y(ji)Țď(qing)ԷȚ

          1bBFcˮڸߜ°l(f)(yng)F͚(yng)ĻW(xu)ʽ飺3Fe+4H2O(g)Fe3O4+H2

          2bBFcˮⷴ(yng)ɵĚ⣬(jng)AʯҸbE~cӟl(f)(yng)~ˮԷ(yng)ĬF(xin)飺ɫķĩ׃ɼtɫܱڮa(chn)ˮ飻

          3z(yn)r(ji)FKSCNҺ^Ƿ׃tʲ飺ȡVҺ׵KSCNҺ^ҺǷ׃tɫ

          4?yn)ȚЏ?qing)܌r(ji)Fxr(ji)Fx飺Fe2Fe3

          (x)ϵд
          P(gun)(x)}

          ĿлW(xu) Դ

          }ĿijW(xu)ڌ(sh)(yn)4(sh)(yn)(yng)D̖ڌ(sh)(yn)׃ręMϣ

          1AlCl3Һμϡˮֱ^|(zh)Sˮ׃r ______P(gun)xӷʽ_____________.

          2AlCl3ҺμNaOHҺֱ^|(zh)SNaOHҺ׃r________,AlCl3Һc^NaOHҺxӷʽ____________.

          3ʯˮͨCO2ֱ^|(zh)SCO2ͨ׃r _____ .

          4NaOHҺμAlCl3Һ^|(zh)SAlCl3׃r________.

          鿴𰸺ͽ>>

          ĿлW(xu) Դ

          }Ŀ200mLBaCl2KClĻҺֳ2ȷݣһݼ뺬a molcҺǡʹ^xȫһݼ뺬b molyҺǡʹxȫtԓҺxӝȞ( )

          A.0.1(b-2a)B.10(2a-b)C.10(b-a)D.10(b-2a)

          鿴𰸺ͽ>>

          ĿлW(xu) Դ

          }ĿлW(xu)(yng)xӷʽ_

          A.FeCl3ҺˮУFe33H2OFe(OH)3(zw)3H

          B.Ba(OH)2Һеμϡ᣺Ba2+OHSO42-H+ =BaSO4H2O

          C.̼cҺмϡ}᣺CO32-2H+ =CO2H2O

          D.XcCuSO4Һ(yng)AlCu2+=CuAl3+

          鿴𰸺ͽ>>

          ĿлW(xu) Դ

          }Ŀ3.48gFȫܽ100mL 1mol/LȻK2Cr2O7Һ25 mLǡʹҺеFe2+ȫD(zhun)Fe3+Cr2O72-ȫD(zhun)Cr3+tK2Cr2O7Һ|(zh)ǣ

          A. 0.05mol/L B. 0.2 mol/L C. 0.1 mol/L D. 0.3 mol/L

          鿴𰸺ͽ>>

          ĿлW(xu) Դ

          }Ŀ(sh)(yn)M(jn)жƂc|(zh)(sh)(yn)ĽMbDʾ֊Abδ

          ՈشІ}

          (1)ڽMbbúҪM(jn)еČ(sh)(yn)_________________________________

          (2)z(yn)SO2cNa2O2ķ(yng)ǷbBʢŵԇX(yng)________bDЉAʯҵ_______________________________________________

          (3)P(gun)]ɊA2_ɊA1ע70%]iƿеĹwz(yn)SO2cNa2O2(yng)ǷɵIJF(xin)_____________________________________

          (4)P(gun)]ɊA1_ɊA2wM(jn)bEFGУfI߀ԭSO2ĬF(xin)_________________l(f)(yng)xӷʽ______________________

          (5)(yn)CbESO2cFeCl3l(f)߀ԭ(yng)ijW(xu)O(sh)Ӌ(j)Œ(sh)(yn)ȡbEеҺԇмϡữBaCl2Һa(chn)ɫɴДSO2cFeCl3l(f)߀ԭ(yng)Ƿ________(򡰲)ԭ________

          鿴𰸺ͽ>>

          ĿлW(xu) Դ

          }Ŀ100 mL H2SO4CuSO4ĻҺУʯī늘OM(jn)늽ɘOϾռ2.24 Lw((bio)(zhn)r)tԭҺCu2|(zh)Ȟ()

          A. 1 molL1 B. 2 molL1 C. 3 molL1 D. 4 molL1

          鿴𰸺ͽ>>

          ĿлW(xu) Դ

          }ĿC1O2dzõԁˮ

          I֪(sh)(yn)ҿÁcwcȚⷴ(yng)ƂClO22NaClO2+C12 =2C1O2+2NaClbˆDʾ

          (1)Aןƿ(ni)l(f)(yng)ĻW(xu)ʽǣ__________

          (2)֪س£ClO2Cl2ǚw܄ܽ±ʾ

          ClO2

          Cl2

          ˮ

          CCl4

          y

          BCEbеԇ_________̖

          a.NaOHҺ b. c.ʳ}ˮ d.CCl4 e.ʯˮ

          IIʹC1O2ڽoԁˮ^Еa(chn)кĸa(chn)(ClO2-)Fe2+ȥ֪ClO2-cFe2+pH=57ėlܿٷ(yng)KγɼtɫClO2-t߀ԭCl-

          (3)Fe2+ClO2-xӷʽ_______

          (4)(sh)HԁˮмFe2+ҪՓֵԭ(Y(ji)xӷʽ)___________

          鿴𰸺ͽ>>

          ĿлW(xu) Դ

          }ĿԪSϩtϩbcĽY(ji)(gu)ʽf_

          A.b֮ͬ(gu)wֻtcɷNB.tbʹKMnO4Һɫc

          C.tbcĶȴֻND.bԭӣͬƽ

          鿴𰸺ͽ>>

          ͬ(x)Դ