Final answer:
Calcium carbonate and water can produce a homogeneous mixture.
Step-by-step explanation:
A homogeneous mixture is a mixture in which the components are uniformly distributed and cannot be easily distinguished from each other. Among the given pairs, the only pair that can produce a homogeneous mixture is d. calcium carbonate and water. When calcium carbonate is added to water, it dissolves and forms a solution in which the calcium carbonate particles are evenly distributed in the water.