4. a Give examples of the mechanical damage that can be done to coral reefs by various fishing techniques. What are some broader effects of this damage? (2 points)

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

i think tornado but not 100%