September 2021 2 12 Report
Помогите пожалуйста

Укажите кислые соли :
1-Mg(H2PO4)
2-Ca(HCO3)2
3-Cu(OH)Cl
4-Cu2(OH)2CO3
5-NaHCO3

A)1, 4, 5
B)2, 3, 4
C)1, 2, 5
D)3, 4, 5
E)1, 2, 4
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