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margo88
@margo88
July 2022
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сколько граммов кальция прореагирует с 4г водорода?
1-20
2-40
3-80
4-160
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astagar16
Ca+H^2=CaH^2
n(h2)=4/1=4моль
n(h2)/n(ca)=1/1=n(ca)=4моль
m(ca)=40г/моль*4моль=160г
3 votes
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Answers & Comments
n(h2)=4/1=4моль
n(h2)/n(ca)=1/1=n(ca)=4моль
m(ca)=40г/моль*4моль=160г