Question

homogeneous mixture that remains constantly and uni - formally mixed and has particles that are so small they can not be seen with a microscope
options: suspension, solution, substance, distillation
tendency for a beam of light to scatter as it passes through a colloid
options: heterogeneous mixture, chemical change, tyndall effect, distillation

Explanation:

First Question (Homogeneous mixture...):

• Suspension: Heterogeneous, particles settle or are visible. Eliminate.
• Solution: Homogeneous, particles too small to see (even microscopically), uniformly mixed. Matches.
• Substance: Pure, not a mixture. Eliminate.
• Distillation: Separation method, not a mixture type. Eliminate.

• Heterogeneous Mixture: Describes mixture type, not light scattering. Eliminate.
• Chemical Change: Involves substance transformation, not light scattering. Eliminate.
• Tyndall Effect: Defined as light scattering through a colloid. Matches.
• Distillation: Separation method, not related to light scattering. Eliminate.

Answer:

B. Solution

Second Question (Tendency for light to scatter...):