Identify three things that change about particles and their interactions, during phase changes.

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change of state,solutiom(dissolving substances),mechanical changes

the awnser is group 12

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