Chloride soluble or insoluble in water?

Answer 1

In solid, a chloride ion is bound with a singly-charged positive ion (or two chloride ions with a doubly-charged positive ion). Examples are NaCl, CaCl2, etc. When these salts are added in water, the +ve ions and -ve ions are separated -- the salt dissolves in water and the clear solution can be colorless (e.g. NaCl) or colored (e.g. CuCl2), depends on the type of positive ion. A few chloride ions exist in air, but will not last too long, because negative ions will be attracted to positive ions in air to form solid (like dust).

Answer 2

Chloride compounds are typically soluble in water. Common examples include sodium chloride (table salt) and potassium chloride. When these compounds dissolve in water, they dissociate into their respective ions, chloride being negatively charged, allowing them to effectively dissolve in water.