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.
When you dissolve sugar or salt in a liquid-say, water-what happens is that the sugar molecules move to fit themselves between the molecules of water within a glass or beaker. The illustration below shows how the different molecules are arranged in the container.he point of this experiment, in addition to learning whether salt or sugar dissolves faster in various liquids, is to learn how molecules interact in a solution. As you saw in the preceding illustration, the water molecules take up most of the room in the container.