Составьте уравнения реакций схемы которых: 1) Ca(OH) 2 +[]HBr>(стрелочка) CaBr2+[]H2O 2)H3PO4+[]NaOH>(cтрелочка) Na3PO4+[]H2O 3) Na2CO3 +[] HCl>(стрелочка)[]NaCl+CO2+H2O 4) Fe2(SO4)3 + []BaCl2>[]BaSO4 + [] FeCl2
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