Pure water can be consumed in a chemical reaction, resulting in the formation of a new product. Refer to Paragraph 4. What type of change is
this?
А
A physical change
B
A chemical change
с
A mixture change
D
A compound change

3

explanation:

the answer would be a

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