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        1. Ӣҽ̾W(wng) > лW > }ĿԔ

          }ĿijУWdȤСMڲYϕrl(f)F(xin)ȼȼҪ(sh)(j)±

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          2D2aČbؿaČx񹯵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՚we֔(sh)ČǼtccȼėl·WʽY(ji)ϱеĔ(sh)(j)tȼ8.8%tײmϜy՚we֔(sh)ⲻȫģ^ִ_Mˮwesռƿ(ni)ݷe1/5ԭһˮ

          mϣtȼҪ8.8%ⲻȫ һ֕ˮɣ

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          ĿлW Դ

          }ĿЈD_ӳ׃P(gun)ϵ

          A.|(zh)}}зքe|(zh)֔(sh)ϡ}^

          B.\Ƭʢһ|(zh)ϡğ

          C.}Ȼ}ĻҺμ뼃AҺ^

          D.|(zh)VXзքe|(zh)֔(sh)ϡ^

          鿴𰸺ͽ>>

          ĿлW Դ

          }ĿСͬW13.9gs|(zh)ȻcļAƷc140.5gϡ}ַy÷ɚw|(zh)(m)crg(t)׃ˆDʾ

          ՈӋ㣺

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

          (2)ȫҺ|(zh)|(zh)֔(sh)

          鿴𰸺ͽ>>

          ĿлW Դ

          }Ŀ֪ KNO3ܽ±ʾf_

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          20

          30

          40

          50

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          A. 10-70֮gSضȵKNO3ܽ

          B.20r 100 g ˮм 35 g KNO3֔裬Һ|(zh) 131.6 g

          C. 70r͵ KNO3Һ͜ضпD(zhun)Һ

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

          鿴𰸺ͽ>>

          ĿлW Դ

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

          1NaAlO2УAl Ļσr_______

          2Ոaȫаl(f)ĻWʽ2NaAlO2 + CO2 +_______ = Na2CO3 +2Al(OH)3

          3ߜطаl(f)ĻW_______ͣ

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          ĿлW Դ

          }ĿЌڏͷֽⷴǣ

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

          C.D.Zn+H2SO4=ZnSO4+H2

          鿴𰸺ͽ>>

          ĿлW Դ

          }ĿijdȤСM̼̽ccҺČˆDʾČ򞡣

          1ĚcҺbҺ©Уȴ_yTK1Vƿаl(f)ĻWʽ____cҺȫMVƿ֮P(gun)]K1ַ󣬴_ֹˮAK2^쵽ĬF(xin)___

          2ͬWďUҺв^VȡVҺԇмϡ}oݮa(chn)fUҺе|(zh)_____________(п)

          鿴𰸺ͽ>>

          ĿлW Դ

          }ĿijͬWO(sh)Ӌ򞷽yijUҺ|(zh)֔(sh)ȡһСQ|(zh)18.2gеUҺQ|(zh)33.2g֮һö|(zh)10.8gF(ɰĥȥFP)ԓСзFᔱ治Кݮa(chn)ٴηQ|(zh)43.9gՈشІ}:

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

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

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

          鿴𰸺ͽ>>

          ĿлW Դ

          }ĿСKʳ}ǏNг|(zh)F(xin)һɫw NaHCO3 NaCl еһNɷNMɡijƌWСMͬWչ_ϵչо

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          Ŀģ_ɫwĽM

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          Y(ji)Փԓɫw_____

          (1)򞲽Exϡϡ}ԭ_____

          (2)򞲽EɰɫĻWʽ_____

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          Ŀģyԓɫw NaHCO3 |(zh)֔(sh)

          򞷽ÚwyƷ NaHCO3 |(zh)֔(sh)b:

          (1)bɱbõB A_______________C(bõĸ̖؏ʹ)

          (2)D bаl(f)ĻWʽ_____

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

          (4)C _____

          (5)D bеķȫQǰ߀ҪMеČ_____

          鿴𰸺ͽ>>

          ͬԴ