Mg + 2 H3PO4 → Mg(PO4)2 + 3 H2
This is an oxidation-reduction (redox) reaction:
2 PV - 4 e- → 2 PVII (oxidation)
6 HI + 6 e- → 6 H0 (reduction)
Mg0 - 2 e- → MgII (oxidation)
H3PO4 is a reducing agent, H3PO4 is an oxidizing agent, Mg is a reducing agent.
Reactants:
- Mg
- H3PO4
Products: