Yes, this is balanced. Each part of the substance (like Mg) has the same number on both sides.
Hope this helps you:)
It’s positive when you use energy for work
If a metal is less reactive than carbon, it can be extracted from its oxide by heating with carbon. The carbon displaces the metal from the compound, and removes the oxygen from the oxide. This leaves the metal.
From a Chemistry perspective it is the electron at 1/1800th the mass of a proton or neutron.
