Question

a. what is the difference between homogenous and heterogenous mixtures?

Explanation:

Homogeneous mixtures have uniform composition and properties throughout, like salt - water solution. Heterogeneous mixtures have non - uniform composition with visible different parts or phases, like a mixture of sand and water.

Answer:

A homogeneous mixture has a uniform composition and properties throughout, while a heterogeneous mixture has a non - uniform composition with visible different parts or phases.