dolor (plural dolors) ( 1 literary) Sorrow, grief, misery or anguish. 2  A unit of pain used to theoretically weigh people's outcomes.
Potassium, K. Reaction with water. When a small piece of potassium is added to water, it produces a hissing sound as it burns with a lilac flame. It also moves about quickly on the water surface. [ image ]. Hydrogen gas is given out in the reaction. The resulting alkaline solution will turn red litmus blue because of the potassium hydroxide formed.
This means that not only is potassium metallic in its elemental form, but it has the ability to react violently with water to produce an alkaline (basic) solution, explains Dr. Martin Silberberg in his book âChemistry: The Molecular Nature of Matter and Change..