Предмет: Химия, автор: uoi189

какую массу кальций карбоната нужно нагреть чтобы получился углекислый газ массой 5,5 г согласно с уравнением CaCO3=CaO+CO2?​

Ответы

Автор ответа: betrynakkirill
1

Ответ:

на самом деле это легко      CaCO3=CaO+CO2

ищем молярную массу кальций карбоната и углекислый газа

выходит уравнение 5,5/44 = x/100

x =550/44 =12.5

Oтвет 12,5г

Об ъяснение:

Mr (CO2) = 44

Mr (CaCO3)=100

углекислый газ массой 5,5

EZE

betrynakkirill: 5,5 *100 =550 просто навсякий
betrynakkirill: всм 3 звезды -_-
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