The formation of a solid, also known as a is an indication of a chemical change. precipitate particulate particle powder

Precipitate

Explanation:

Precipitation is actually a chemical reaction that occurs when a solid form is produced from a solution. The solid form is called the precipitate if precipitation occurs in a liquid solution. Precipitates formed are generally, insoluble. This type of reaction can be used to remove salts from a solution, like in the process of purification.

the dissociation of nickel hydroxide is follows:

the concentration of hydroxide ion is

the equilibrium constant value of nickel hydroxide is = 6.1 * 10^-^1^6 and thus equilibrium equation can be written as:

thus, concentration of ni is 0.23 * 10^-^4 mol /l