Mg stands for magnesium and O stands for oxygen, on the chemical reaction of both the following happens in the presence of heat:
Mg + O ---> MgO
magnesium + oxygen = magnesium oxide
If you mean Mg + C + O2,
the answer is: MgCO3 - Magnesium Carbonate.
Mg equals Mg2+ plus 2e-
The reaction is between Mg and O2. 2Mg+O2->2MgO
Mg+O2----->MgO
There are two atoms of oxygen on each side.
Mg + MgCl2
C+O2 →CO2
MgO2
MgO2
Balanced Equation: 2Mg(NO3)2 = 2MgO + 4NO2 + O2
2c + o2---2co
Mg(s) + 3/2 O2(g) + C(s) ----> MgCO3(s)
Mg equals Mg2+ plus 2e-
Because there are now 2 magnesiums and 2 oxygena after they have reacted
1c+1o2->1co2
2,1,2
The chemical reaction is:2 Mg + O2 = 2 MgO
2Ca + 3O2 + 2C -> 2CaCO3