Can someones please check my work?

1. Why does a liquid take the shape of whatever container it is in but does not expand to fill the container completely?

A: It takes the shape of its contaienr because its particles can slip past each other. but it has fixed volume and does not diffuse like gas so it doesn't completely fill the container.

2. Describe the connection between kinetic energy and the movement of particles in a substane.

A: The more kinetic energy particles have, the faster they move. They get more excited.

3. Which physical propery is the ratio of the mass of a substance divided by its volume?

A: Density.

4. Mercury is a metal with a melting point of -39C and a boiling point of 357C. What is its state at:0C, 500C, -1C

A: 0C = solid, 500C = gas, -1C = solid

5. the melting point of silver metal is 962C, and its boiling point is 2162C. Describe how the particles appear in silver at 900C and at 3000C.

A: 900C = there are some space between particles. 3000C = there is a lot of space between particles.

Are they correct? If not, please correct me.

Thank you very much!

Overall, your answers are mostly correct. However, there are a few minor corrections and clarifications that can be made:

1. Why does a liquid take the shape of whatever container it is in but does not expand to fill the container completely?
A: Correct. The particles in a liquid can move past each other, allowing the liquid to take the shape of its container. However, due to intermolecular forces, liquids have a fixed volume and do not completely expand to fill the container like gases.

2. Describe the connection between kinetic energy and the movement of particles in a substance.
A: Correct. The higher the kinetic energy of particles, the faster they move. Increased kinetic energy leads to more vigorous particle motion.

3. Which physical property is the ratio of the mass of a substance divided by its volume?
A: Correct. Density is defined as the mass of a substance divided by its volume. It describes how compact or concentrated a substance is.

4. Mercury is a metal with a melting point of -39°C and a boiling point of 357°C. What is its state at 0°C, 500°C, -1°C?
A: Correct. At 0°C, mercury is in a solid state. At 500°C, mercury is in a gaseous state. At -1°C, mercury remains in a solid state. It's important to note that the melting point is the temperature at which a substance transitions from a solid to a liquid, while the boiling point is the temperature at which it transitions from a liquid to a gas.

5. The melting point of silver metal is 962°C, and its boiling point is 2162°C. Describe how the particles appear in silver at 900°C and at 3000°C.
A: At 900°C, silver particles would be in a liquid state. The particles would have more freedom to move, and the substance would no longer have a fixed shape like a solid. At 3000°C, silver particles would be in a gaseous state. At this temperature, the particles would have sufficient energy to break the intermolecular forces completely, causing the silver to vaporize and become a gas.

Overall, great job!