Homogeneous and heterogeneous mixtures Original Scenario-Based Practice

Questions

1. 1.

   During an expedition aboard an orbital research station, an astrobiologist processes collected samples into four sealed canisters. Canister 1 contains fine mineral dust slowly settling to the bottom of liquid methane, Canister 2 contains a fluorocarbon gas completely dissolved in liquid nitrogen to form a clear fluid with uniform properties throughout, Canister 3 contains immiscible oil droplets floating in an aqueous nutrient broth, and Canister 4 contains floating crystal flakes clearly visible to the naked eye. Which canister contains a homogeneous mixture, and what fundamental characteristic confirms this classification?

   • A) Canister 1, because the dust particles eventually reach equilibrium at the base of the container.
   • B) Canister 2, because the dissolved components are uniformly distributed at the molecular level into a single continuous phase.
   • C) Canister 3, because the droplets remain suspended without undergoing an irreversible chemical reaction.
   • D) Canister 4, because visible crystal flakes possess a definite and constant chemical composition.

Answers and step-by-step solutions appear after you finish the test.