Commutator (electric) A commutator is a moving part of a rotary electrical switch in certain types of electric motors and electrical generators that periodically reverses the current direction between the rotor and the external circuit. It consists of a cylinder composed of multiple metal contact segments on the rotating armature of the machine.
The word equation that would represent the formation of lithium oxide from lithium metal and oxygen is: lithium + oxygen to lithium oxide. In chemical symbols, the balanced chemical equation is expressed as: Li + O2 = Li2O.
The generic algebraic equation for a combustion reaction is: AB + oxygen â common oxide of A and B. In a complete combustion reaction, a reactant burns with oxygen to produce the most common oxides of the elements making up the substance that is burned.The combustion of methane means that it is possible to burn it. Chemically, this combustion process consists of a reaction between methane and oxygen in the air.he generic algebraic equation for a combustion reaction is: AB + oxygen â common oxide of A and B. In a complete combustion reaction, a reactant burns with oxygen to produce the most common oxides of the elements making up the substance that is burned.