Зазначте рядок, який містить лише амфотерні сполуки
1)Fe2O3, ZnO, Al(OH)3,Zn(OH)2
2)Al(OH)3, SO3, NaOH, Cu(OH)2
3)CaO, CO2, NaOH, Na2O
4)Li2O, SO2, NaOH, FeO​
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