Fluorine liberates energy when it condenses. When potassium is added to water, potassium hydroxide is formed along with hydrogen, which ignites during the reaction. Potassium reacts with water. KO 2 when it reacts with oxygen. Potassium reacts with sulfur.
Potassium reacts with chlorine.
It contains five hydrogen atoms. It contains seven hydrogen atoms. It contains nine hydrogen atoms. It contains two H 4 molecules and a hydrogen atom. It contains one H 4 molecule and an H 2 molecule.