Question

1. explain the difference between heterogenous and homogeneous mixtures on the macroscale (what you can see!) 2. explain the difference between heterogeneous and homogeneous mixtures on a nanoscale (what you would see if you could zoom in super close to the particles). 3. classify each of the following as a heterogeneous (he) or homogeneous (ho) mixture. a. - chicken noodle soup b. - m&ms c. - rubbing alcohol d. - sugar water (fully dissolved) 4. classify the following particle diagrams as representative of a homogeneous or heterogeneous mixture, and justify your response. particle diagram classification (circle one) justification heterogeneous / homogeneous heterogeneous / homogeneous

Explanation:

1. On the macroscale, a homogeneous mixture has a uniform appearance throughout, like a clear solution. A heterogeneous mixture has visibly different parts or phases, such as a salad with different vegetables.
2. On the nanoscale, in a homogeneous mixture, the particles are evenly distributed at the atomic - molecular level. In a heterogeneous mixture, there are distinct regions with different compositions at the nanoscale.

3.

• a. Chicken noodle soup has visible different components (noodles, broth, chicken pieces), so it is a heterogeneous (He) mixture.
• b. M&Ms are different colored candies mixed together, so it is a heterogeneous (He) mixture.
• c. Rubbing alcohol is a single - phase liquid with uniform composition, so it is a homogeneous (Ho) mixture.
• d. Fully dissolved sugar water has a uniform composition throughout, so it is a homogeneous (Ho) mixture.

1. For the first particle diagram with different - shaped and - colored particles, it represents a heterogeneous mixture because there are distinct types of particles not uniformly distributed. For the second particle diagram with uniform - shaped and - sized particles, it represents a homogeneous mixture as the particles are evenly distributed and of the same type.

Answer:

1. Homogeneous mixtures look uniform macroscopically; heterogeneous mixtures have visible different parts.
2. Homogeneous mixtures have evenly - distributed particles at the nanoscale; heterogeneous mixtures have distinct regions.
3. a. He

b. He
c. Ho
d. Ho

1. First diagram: Heterogeneous; different types of particles not uniformly distributed. Second diagram: Homogeneous; uniform particles evenly distributed.