You can use the periodic table to help you understand why some atoms form molecules while others do not. Argon and chlorine are both nonmetals. Argon exists in nature as individual argon atoms. Chlorine exists in nature as two chlorine atoms covalently bonded to each other. Why does this occur?

practical process described pest part of scientific investigation.

because practical knowledge is powerful then therotical knowledge.

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