What is Law Conservation of Mass? Btw Follow My Instagram if u want lolol 0ieraii0

Mass is never created or destroyed. (in chemical reactions)

Explanation:

The mass of any element at the beginning of a reaction will be equal to the mass of that element at the end of the reaction. Or if you are not talking about chemical reactions, it is simply the idea that mass is never created or destroyed.

16

explanation:

the marks go by 4s

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