NGS Matter Section 2: Types of Mixtures

What is a solution?

• A heterogeneous mixture with large particles

• A homogeneous mixture with small particles

• A mixture that always settles

• A mixture that scatters light

Which of the following is an example of a colloid?

• Vinegar

• Fog

• Chocolate milk

• Italian salad dressing

What is the Tyndall effect?

• The settling of particles in a suspension

• The scattering of light by colloid particles

• The dissolving of substances in a solution

• The separation of mixtures by filtration

What type of mixture is Italian salad dressing?

• Compound

• Suspension

• Colloid

• Solution

Which mixture will never settle at the bottom of its container?

• Suspension

• Colloid

• Emulsion

• Solution

What characterizes a suspension?

• Particles that scatter light

• Visible particles that settle over time

• Particles that are too small to see

• Particles that dissolve completely

Which of the following is NOT a characteristic of a colloid?

• Particles are too light to settle

• Particles scatter light

• Particles settle over time

• Particles are larger than in a solution

What is an example of a solution?

• Chocolate milk

• Fog

• Italian salad dressing

• Vinegar

Which mixture type is characterized by having one or more substances dissolved in another?

• Colloid

• Suspension

• Solution

• Emulsion

What happens when you shine a beam of light at a colloid?

• The light passes through without scattering

• The light is absorbed completely

• The light reflects back

• The light scatters