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        1. Ӣҽ̾W(wng) > лW > }ĿԔ

          }Ŀ10WWСMͬW˜yijʯʯ̼}|(zh)֔(sh)ȡһ|(zh)ʯʯڟ120gϡ}ɴμУʯʯеs|(zh)c}ᷴҲcˮ^̵|(zh)P(gun)ϵDʾxʾϡ}|(zh)/gyʾ|(zh)Ŀ|(zh)/gՈشІ}

          1ʯʯcϡ}|(zh)Ȟ rǡȫйa(chn)CO2 g

          2ԓʯʯCaCO3|(zh)֔(sh) 

          3ͨ^Ӌ}|(zh)|(zh)֔(sh)

          𰸡1121 8.81250%2318.25%

          ԇ}1(j)D֪ϡ}|(zh)80grʣҺ|(zh)׃f̼}ȫʯʯcϡ}|(zh)Ȟ12ɵĚw|(zh)飺80g+40g-111.2g= 8.8g1

          2O(sh)ӷCaCO3|(zh)x}|(zh)|(zh)y

          CaCO3+2HCl==CaCl2+H2O+CO2

          100 73 44

          X y 8.8g

          73/y=44/8.8g 100/x=44/8.8g

          x=14.6g x=20g

          2ԓʯʯCaCO3|(zh)֔(sh)20g/40g100%=50%

          }|(zh)|(zh)֔(sh)=14.6g/80g100%=18.25%

          ʯʯCaCO3|(zh)֔(sh)50%;}|(zh)|(zh)֔(sh)18.25%

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