In one to two sentences, explain a similarity and a difference between the particles in liquid water at 100ºC and the particles in steam at 100ºC.(2 points)

The similarity between the particles in liquid water and steam at 100ºC is that both have particles that are moving and have enough energy to overcome forces of attraction, leading to a more disordered arrangement. However, the difference is that in liquid water, the particles are closer together and have a higher density, while in steam, the particles are farther apart and have a lower density.

You overhear a friend saying, “Plastic is the worst thing that humans have ever invented.”

In four to five sentences, explain whether you agree or disagree with your friend’s statement. Be sure to include facts that show the range of impacts that plastic has on human society and the environment.

(4 points)

The similarity between the particles in liquid water at 100ºC and the particles in steam at 100ºC is that both consist of water molecules. The difference is that the particles in liquid water are closely packed and have strong intermolecular forces, while the particles in steam are spread further apart and have weaker intermolecular forces.

The similarity between the particles in liquid water at 100ºC and the particles in steam at 100ºC is that they are both composed of water molecules. The difference is that in liquid water, the particles are tightly packed and have less energy, while in steam, the particles are far apart and have more energy due to higher temperature.