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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.

Both liquid water particles at 100ºC and steam particles at 100ºC are in the gaseous state, with particle movement as random and rapid, but the main difference lies in the intermolecular forces, as liquid water particles have stronger intermolecular attractions while steam particles have weaker intermolecular attractions.

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.

I agree with my friend's statement that plastic is one of the worst inventions made by humans, considering its numerous negative impacts on our society and the environment. Plastic production involves the extraction and refinement of fossil fuels, contributing to air and water pollution, as well as greenhouse gas emissions. Plastic waste is also a significant problem, with approximately 8 million metric tons entering the oceans annually, endangering marine life and ecosystems. Additionally, plastic takes hundreds of years to decompose, leading to long-lasting pollution in landfills and natural environments. Lastly, microplastics have infiltrated the food chain, posing potential health risks to humans who consume contaminated seafood and other products.

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

A similarity between the particles in liquid water at 100ºC and the particles in steam at 100ºC is that both are composed of water molecules. A difference is in the arrangement and energy of the particles, where liquid water molecules are closer together and have lower energy compared to steam, which has water molecules that are far apart and have higher energy.