Question

Cân bằng phương trình oxi - hoá khử sau:

\(M_xO_y+HNO_3-\rightarrow M\left(NO_3\right)_n+NO\uparrow+H_2O\)

Answer 1

\(\left\{{}\begin{matrix}xM^{2y\text{/}x}-\left(xn-2y\right)e\rightarrow xM^n\\N^{+5}+3e\rightarrow N^{+3}\end{matrix}\right.\\ 3M_xO_y+\left(4xn-2y\right)HNO_3\rightarrow3xM\left(NO_3\right)_n+\left(xn-2y\right)NO\uparrow+\left(2xn-y\right)H_2O\)

Answer 2

3MxOy + (4nx - 2y)HNO3 = 3xM(NO3)n + (nx - 2y)NO + (2nx - y)H2O