Ответ:
2Ca+O2= 2CaO
CaO+2HNO3=Ca(NO3)2+ H2O
Ca(NO3)2+Na2SO4=CaSO4+ 2NaNO3
Ca+2H2O= Ca(OH)2+H2
3Ca(OH)2+2H3PO4= Ca3(PO4)2+ 6H2O
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Ответ:
2Ca+O2= 2CaO
CaO+2HNO3=Ca(NO3)2+ H2O
Ca(NO3)2+Na2SO4=CaSO4+ 2NaNO3
Ca+2H2O= Ca(OH)2+H2
3Ca(OH)2+2H3PO4= Ca3(PO4)2+ 6H2O