The following drugs, medications, substances or toxins are some of the possible causes of Eyelid pain as a symptom. Always advise your doctor of any medications or treatments you are using, including prescription, over-the-counter, supplements, herbal or alternative treatments. 1  Lumigan.
Some substances dissolve when you mix them with water. When a substance dissolves, it looks like it disappears. But in fact it has just mixed with the water to make a transparent (see-through) liquid called a solution. When you mix sugar with water, the sugar dissolves to make a transparent solution. Salt dissolves in water too. Heat can help some substances dissolve faster in water. Salt, for example, will dissolve quicker in hot water than in cold water. Substances that dissolve in water are called soluble substances.
That is, the cations and anions of an ionic solute separate when the solute dissolves. This process is referred to as dissociationThe process of cations and anions of an ionic solute separating when the solute dissolves. .escribe what happens when an ionic solute like Na 2 SO 4 dissolves in a polar solvent. Describe what happens when a molecular solute like sucrose (C 12 H 22 O 11) dissolves in a polar solvent. Classify each substance as an electrolyte or a nonelectrolyte. Each substance dissolves in H 2 O to some extent.