Identify each of the pictures as heterogeneous or homogeneous

Answer : The image C shows homogeneous mixture and image A, B and D shows heterogeneous mixture.

Explanation :

Heterogeneous mixtures : It is a mixture in which the constituent substances are not mixed well and do not have a uniform composition throughout the mixture that means appears non-uniformly throughout the solution.

Homogeneous mixtures : It is a mixture in which the constituent substances are mixed well and have a uniform composition throughout the mixture that means appears uniformly throughout the solution.

From the given image we conclude that the,

image C shows homogeneous mixture and image A, B and D shows heterogeneous mixture.

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