1.

Which of the following is NOT a double displacement reaction?_x005F_x000D_

A. CuSO4 + H2S ---> CuS + H2SO4
B. Mg3N2 + 6H2O --> 3MgOH2 + 2NH3
C. BaCl2 + H2SO4 --> BaSO4 + 2HCl
D. NaOH + HCl  --> NaCl + H2O
Answer» C. BaCl2 + H2SO4 --> BaSO4 + 2HCl


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