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1) Ca->CaO->Ca(OH)2->Ca(NO3)2->Caso4
2) C->CO2->Na2CO3->CO2->CaCO3
1) Ca->CaO->Ca(OH)2->Ca(NO3)2->Caso4
2) C->CO2->Na2CO3->CO2->CaCO3
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Answers & Comments
CaO+H2O=Ca(OH)2
Ca(OH)2+2HNO3=Ca(NO3)2+2H2O
Ca(NO3)2+H2SO4(разб.) =CaSO4(осадок) +2HNO3