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.
On falling into cold water, cold receptors in the skin cause immediate physiological responses, the first of which is a âgaspâ reflex. If this happens when your head is under water, you are in deep trouble. Next, you begin to hyperventilate, within seconds, your heart begins to race, and your blood pressure spikes.