6 practice sets · Page 1 of 1
What is the main characteristic of a homogeneous mixture?
The components settle over time
The components are visibly different
The components are uniformly distributed
The components can be separated by physical means
Correct Answer: C — The components are uniformly distributed
Explanation:
A homogeneous mixture has a uniform composition throughout.
Which of the following is an example of a heterogeneous mixture?
Concrete
Vinegar
Milk
Saltwater
Correct Answer: A — Concrete
Explanation:
Concrete is a heterogeneous mixture because its components are not uniformly distributed.
What type of mixture is air?
Heterogeneous mixture
Homogeneous mixture
Compound
Pure substance
Correct Answer: B — Homogeneous mixture
Explanation:
Air is a homogeneous mixture of gases uniformly distributed.
What is a colloid?
A solution in which the solute is in large quantities
A homogeneous mixture with small particles
A heterogeneous mixture with tiny particles
A homogeneous mixture with large particles
Correct Answer: C — A heterogeneous mixture with tiny particles
Explanation:
A colloid is a heterogeneous mixture with very small suspended particles.
What is the key characteristic of a heterogeneous mixture?
Components are uniformly distributed
Components are chemically bonded
Components form a single phase
Components are not uniformly distributed
Correct Answer: D — Components are not uniformly distributed
Explanation:
In a heterogeneous mixture, components are unevenly distributed.
What type of mixture is sugar dissolved in water?
Suspension
Colloid
Homogeneous mixture
Heterogeneous mixture
Correct Answer: C — Homogeneous mixture
Explanation:
Sugar dissolved in water forms a homogeneous mixture because it is uniformly distributed.
