O
The balanced symbol equation for potassium and oxygen is: 4K + O2 -> 2K2O
The symbol equation for the reaction of sulfur with oxygen is: S + O2 → SO2
zinc + oxygen ----> zinc oxide Symbol equation
oxygen and hydrogen makes electricity and water
2Cu+O2 ---> 2CUO
Since graphite is basically Carbon C + O2 --> CO2
The symbol equation for the reaction of magnesium with oxygen to form magnesium oxide is: 2Mg + O2 -> 2MgO
The balanced symbol equation for copper reacting with oxygen to form copper oxide is: 4Cu + O2 → 2Cu2O
The symbol equation for the reaction between calcium and oxygen is: 2Ca + O2 -> 2CaO. This represents the combination of two atoms of calcium with one molecule of oxygen to form two molecules of calcium oxide.
S+O2 = SO2
One possibility is: 2 SO2 + O2 = 2 SO3
The balanced symbol equation for carbon plus oxygen yielding carbon dioxide is: C + O2 -> CO2