ychenicaa7
03.10.2021 05:54
Химия
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1 Where, when and why did the incident happen? 2 What caused the incident?
3 What were conditions like?
4 How did people react? What were people doing?
5 What happened in the end?
6 What did people say?​

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Sofia2819
4,7(100 оценок)

21,3г. хг. caco3+2hcl=cacl2+h2o+co2 20г-100% хг-94%; х=20*94/100=18,8 г v(caco3)=18,8/100=0,188 моль 0,188моль-х моль 1 моль-1 моль х=0,188 моль v(co2)=0,188*22,4=4,2л

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