問題詳情

2. Which of the following substances will form basic solutions in an aqueous solution? NH4Cl, Cu(NO3)2, K2CO3, NaF, NaCl?
(A) NaF and NaCl only
(B) NH4Cl only
(C) K2CO3, NH4Cl , NaCl
(D)NH4Cl, Cu(NO3)2
(E)NaF and K2CO3

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