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        1. }ĿijW(xu)dȤСMڲYϕrl(f)F(xin)ȼȼҪ(sh)(j)±

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          ՈY(ji)ϔ(sh)(j)شІ}

          1D1̲Мy՚we?jn)?sh)ČbÈDՈƿаl(f)ĻW(xu)(yng)ʽ___________Y(ji)ϔ(sh)(j)J(rn)tmڜy՚we?jn)?sh)fɣ_________^ִ_Mˮwesռƿ(ni)ݷe1/5ԭ________

          2D2aČbãؿaČx񹯵ă(yu)c_________̖x

          A ^̛]Ⱦ

          B ɵĻӟֵֽõ

          C ڹҺ

          D ܌]bÃ(ni)՚е׺ıM

          𰸡 mtȼҪ8.8%ⲻȫ һ֕ˮ?q)roƿ^ƿвֿ՚ܟÛɢݳȥˣ BCD

          1D1Мy՚we?jn)?sh)ČǼtccȼėl·(yng)W(xu)ʽY(ji)ϱеĔ(sh)(j)tȼ8.8%tײmϜy՚we?jn)?sh)ⲻȫ^ִ_Mˮwesռƿ(ni)ݷe1/5ԭһˮ

          mtȼҪ8.8%ⲻȫ һ֕ˮɣ

          2A ؽԪأȾh(hun)xA}

          B ڼӟl·(yng)ӟɹxB}

          C ڹMУγһ]gxC}

          D ܌]bÃ(ni)՚еȫıMxD}

          xBCD

          (x)ϵд
          P(gun)(x)}

          ĿлW(xu) Դ

          }ĿЈD_ӳ(yng)׃P(gun)ϵ

          A.|(zh)}}зքe|(zh)?jn)?sh)ϡ}^

          B.\Ƭʢһ|(zh)ϡğ

          C.}Ȼ}ĻҺμ뼃AҺ^

          D.|(zh)VXзքe|(zh)?jn)?sh)ϡ^

          鿴𰸺ͽ>>

          ĿлW(xu) Դ

          }ĿСͬW(xu)13.9gs|(zh)ȻcļAƷc140.5gϡ}ϣַ(yng)y÷(yng)ɚw|(zh)(m)c(yng)rg(t)׃ˆDʾ

          ՈӋ㣺

          (1)AƷ̼c|(zh)?jn)?sh)(ӋY(ji)һλС(sh))

          (2)ȫ(yng)Һ|(zh)|(zh)?jn)?sh)

          鿴𰸺ͽ>>

          ĿлW(xu) Դ

          }Ŀ֪ KNO3ܽ±ʾf_

          ض/

          10

          20

          30

          40

          50

          60

          70

          ܽ/g

          20.9

          31.6

          45.8

          63.9

          85.5

          110

          138

          A. 10-70֮gSضȵߣKNO3ܽ

          B.20r 100 g ˮм 35 g KNO3?jn)裬Һ|(zh) 131.6 g

          C. 70r͵ KNO3Һ͜ضпD(zhun)Һ

          D.50r KNO3Һ|(zh)|(zh)?jn)?sh) 85.5%

          鿴𰸺ͽ>>

          ĿлW(xu) Դ

          }Ŀúúȼa(chn)ĹwUͨ 15%~35% Al2O3ķúȡ Al2O3һNˇˆD

          1NaAlO2Al Ļσr_______

          2Ոaȫ(yng)аl(f)(yng)ĻW(xu)ʽ2NaAlO2 + CO2 +_______ = Na2CO3 +2Al(OH)3

          3ߜط(yng)аl(f)ĻW(xu)(yng)_______(yng)ͣ

          鿴𰸺ͽ>>

          ĿлW(xu) Դ

          }ĿЌڏ(f)ֽⷴ(yng)ǣ

          A.B.H2SO4+2NaOH=Na2SO4 + 2H2O

          C.D.Zn+H2SO4=ZnSO4+H2

          鿴𰸺ͽ>>

          ĿлW(xu) Դ

          }ĿijdȤСM̼̽ccҺ(yng)ČˆDʾČ

          1ĚcҺbҺ©Уȴ_yTK1Vƿаl(f)(yng)ĻW(xu)ʽ____cҺȫMVƿ֮P(gun)]K1ַ(yng)󣬴_ֹˮAK2^쵽ĬF(xin)___

          2ͬW(xu)ďUҺв^VȡVҺԇмϡ}oݮa(chn)fUҺе|(zh)_____________(п)

          鿴𰸺ͽ>>

          ĿлW(xu) Դ

          }ĿijͬW(xu)O(sh)Ӌ򞷽yijUҺ|(zh)?jn)?sh)ȡһСQ|(zh)18.2gеUҺQ|(zh)33.2g֮һö|(zh)10.8gF(ɰĥȥFP)ԓСз(yng)Fᔱ治Кݮa(chn)ٴηQ|(zh)43.9gՈشІ}:

          (1)a(chn)w|(zh) g.

          (2)ӋԓUҺ|(zh)?jn)?sh)(ӋY(ji)һλС(sh))

          (3)F?sh)FP(Ҫɷ֞F)δӋY(ji)Ӱ (ƫƫС)ԭ 

          鿴𰸺ͽ>>

          ĿлW(xu) Դ

          }ĿСKʳ}ǏNг|(zh)F(xin)һɫw NaHCO3 NaCl еһNɷNMɡijƌW(xu)СMͬW(xu)չ_ϵչо

          (һ)

          ?zi)ģ_ɫwĽM

          򞷽

          Y(ji)Փԓɫw_____

          (1)򞲽Exϡϡ}ԭ_____

          (2)򞲽EɰɫĻW(xu)(yng)ʽ_____

          ()

          ?zi)ģyԓɫw NaHCO3 |(zh)?jn)?sh)

          򞷽ÚwyƷ NaHCO3 |(zh)?jn)?sh)b:

          (1)bɱbõB A_______________C(bõĸ̖؏(f)ʹ)

          (2)D bаl(f)(yng)ĻW(xu)ʽ_____

          (3)]н(jng)^ A böֱͨ՚⣬ʹyY(ji)_____(׃׃С׃)

          (4)C _____

          (5)D bеķ(yng)ȫQǰ߀ҪMеČ_____

          鿴𰸺ͽ>>

          ͬ(x)Դ