Установите соответствие между реагентами и ионно-молекулярным уравнением реакции
1) KOH + H2SO4
2) Сu(OH)2 + HCl
3) Na2CO3 + HNO3
4) Na2CO3 + CO2 + H2O

А. Cu(OH)2 + 2H = Cu + 2H2O
Б. CO3 + CO2 + H2O = 2HCO3
В. H + OH = H2O
Г. CO3 + 2H = CO2 + H2O
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