Which of the following is an oxidation-reduction (redox) reaction?
A. 2K(s) + 2H2O(l) → 2KOH(aq) + H2(g)
B. 2NaN3(g) → 2Na(g) + 3N2(g)
C. 4NH3(g) + 5O2(g) → 4NO(g) + 6H2O(g)
D. Fe(s) + Ni(NO3)2(aq) → Fe(NO3)2(aq) + Ni(s)
E. all of the above
1 answer
buiun