Use this oxidation-reduction reaction to answer questions about half-reactions:
Mg + 2HCl → MgCl2 + H2
Classify these half-reactions by typing in "O" for "oxidation half-reaction," "R" for "reduction half-
reaction," and "N" for "neither."
HCI→ MgCl2
Mg → MgCl2 + 2e
2HCI + 2e →H2