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        1. ijW(xu)dȤСMͬW(xu)һƿȻccwƷM(jn)ˆDʾČ(sh)(yn)

          ֪Na2SO4 + BaCl2 =  BaSO4 + 2NaCl
          Ո(qng)(j)ϢӋ(j)㷴(yng)Һ|(zh)|(zh)?jn)?sh)
          ⣺BaSO4|(zh)飺10g + 87g + 54.65g - 140g =" 11.65" g
          O(sh)Ʒc|(zh)x,Ȼc|(zh)y
          Na2SO4 + BaCl2 =BaSO4 + 2NaCl
          142              233      117
          x              11.65g     y

          x = 7.1g

          y = 5.85g
          (yng)Һ|(zh)|(zh)飺10g-7.1g+ 5.85g = 8.75g
          (yng)Һ|(zh)|(zh)?jn)?sh)飺
          𣺷(yng)Һ|(zh)|(zh)?jn)?sh)6.25%

          ԇ}(j)|(zh)غ㶨ɣ(yng)ǰ|(zh)Ŀ|(zh)ڷ(yng)|(zh)Ŀ|(zh)
          Na2SO4|(zh)+ˮ|(zh)+ BaCl2Һ|(zh)= BaSO4|(zh)+NaCl|(zh)
          BaSO4ˮҺ|(zh)BaSO4|(zh)飺10g + 87g + 54.65g - 140g =" 11.65" g
          BaSO4|(zh)бʽӋ(j)ӷ(yng)c|(zh)7.1gƷкNaCl|(zh)10g-7.1g="2.9" g  ټNaCl|(zh)Ƿ(yng)|(zh)Ŀ|(zh)(yng)Һ|(zh)|(zh)飺2.9 g + 5.85g = 8.75g
          (j)|(zh)|(zh)?jn)?sh)=100%=
          (x)(c)ϵд
          P(gun)(x)}

          ĿлW(xu) ԴԔ Ӌ(j)}

          һоԌW(xu)(x)СMy(c)ij~\Ͻijɷ֣ȡ10gԓϽ(jng)ټϡᣬ(yng)^П(ni)w|(zh)|(zh)c(yng)r(sh)gP(gun)ϵˆDʾՈ(qng)شІ}

          1ϽĿ               
          210gϽ~|(zh)       g
          3ַ(yng)a(chn)Ě|(zh)

          鿴𰸺ͽ>>

          ĿлW(xu) ԴԔ Ӌ(j)}

          ȲC2H2һNҪĻԭ(sh)(yn)ҳ̼}CaC2cˮ(yng)ȡȲԓ(yng)ʽ飺CaC2 + 2H2O =CaOH2 + C2H2Ӌ(j)㣺Ҫȡ52gȲwҪ̼}|(zh)

          鿴𰸺ͽ>>

          ĿлW(xu) ԴԔ Ӌ(j)}

          1ԓеķԪص|(zh)g

          2̼}cθᷴ(yng)ĻW(xu)ʽ                               

          鿴𰸺ͽ>>

          ĿлW(xu) ԴԔ Ӌ(j)}

          ijʯʯƷijɷCaCO3SiO2֪SiO2ȲˮҲc}ᷴ(yng)nСM˜y(c)ԓʯʯƷ̼}|(zh)?jn)?sh)12.0gʯʯƷȡ100 gϡ}4μÿξַ(yng)(sh)(yn)(sh)(j)ӛ£
          Δ(sh)
          1
          2
          3
          4
          ϡ}|(zh) /g
          25
          25
          25
          25
          (yng)|(zh)Ŀ|(zh) /g
          m
          58.4
          82.6
          107.6
           
          󣺣1ɶ̼Ŀ|(zh)g
          21μϡ}ַ(yng)|(zh)Ŀ|(zh)g
          3ԓʯʯƷ̼}|(zh)?jn)?sh)Ӌ(j)^̣

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          ĿлW(xu) ԴԔ x}

          ȡһFc~Ļ|(zh)|(zh)?jn)?sh)9.8%ϡ100gǡȫ(yng)}ˮԭԪص|(zh)ǣ
          A6.4gB3.2gC1.8gD1.6g

          鿴𰸺ͽ>>

          ĿлW(xu) ԴԔ Ӌ(j)}

          ij켈SŷŵďUˮкNa2CO3NaOH˜y(c)UˮNa2CO3|(zh)?jn)?sh)ȡUˮ100gμϡ}^y(c)ɚw|(zh)cϡ}|(zh)P(gun)ϵDʾ

          Ո(qng)شІ}
          1(yng)ɵĚw|(zh)   gcUˮNaOH(yng)}飺  
          2ԓUˮNa2CO3|(zh)?jn)?sh)ϡ}|(zh)|(zh)?jn)?sh)

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          ĿлW(xu) ԴԔ Ӌ(j)}

          |a(chn)^Е(hu)a(chn)һĺ~Uϣ(j)(bo)ͨ՚Ⲣӟėl~cϡᷴ(yng)D(zhun)~ԓ(yng)ĻW(xu)ʽ飺2Cu+2H2SO4+O2 2CuSO4+2H2Oһ|(zh)|(zh)?jn)?sh)9.8%ϡǡ̎2000g~3.2%ďUϣO(sh)s|(zh)ᷴ(yng)Ҳˮ󷴑(yng)~Һ|(zh)|(zh)?jn)?sh)

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          ĿлW(xu) ԴԔ x}

          12gijw90gˮгܽ^VVԓw2gtԓVҺ|(zh)|(zh)?jn)?sh)
          A10%B11.7%C12%D13.3%

          鿴𰸺ͽ>>

          ͬ(x)(c)