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.
How many oxygen atoms are in the formula for iron (III) oxide? If oxide contains only 1 oxygen atom per molecule then why iron oxide formulae is FE2O3? Chemical Formula for Potassium + Oxygen = Potassium Oxide?