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my favorite character is cindrella. she is the main character of the fairy-tale under the name of cinderella. she has got a long fair hair and big blue eyes. her fairy godmother gives her a wonderful long blue dress and crystal shoes. cindrella is a so kind, clever and hardworking girl. she has two sisters and a stepmother, who dont love her and   treat her horribly. one day she goes to the ball and the prince fall in love with her. on her way home she loses one of her shoes. the prince wants to find cinderella and marry her.   soon he finds her and they are happy.

caco3 = cao + co2         мr(caco3)= 40+12+16*3=100

n(caco3) = 1000\ 100= 10 моль

1моль/1моль=хмоль/1моль     , где х= n(сao) м(cao)=1моль* 56г/моль= 56г

1моль/1моль=yмоль/1моль     ,  где y= n(сo2) v(co2)= 22,4дм3/моль *1 моль= 22,4 дм3

ответ: м(cao)=56г,  v(co2)= 22,4 дм3