Distinguish between the three main physical properties of gas particles by completing the passages below.

1. Size is very _____ . It is assumed that there are ____ significant _____ or ______ forces among gas particles.
2. Motion is _____ moving in a ____ pattern. It is assumed that gas particles move in a ____ path until they ______.
3. Energy is ______. It is assumed that _____ and _____ impact the ____ level of a gas ____.

Write Graham's law of effusion as a proportional statement.

Compare and contrast the chemical and physical properties of gases.

Simple diffusion describes the net movement of particles from an area of  ____________.

Calculate the density of a sample with a mass of 22.5 g and a volume of $5.0 \mathrm{cm}^{3}$. Use the equation: density = mass/volume.

When a gas is diffusing through air in a diffusion channel, the diffusion rate is the number of gas atoms per second diffusing from one end of the channel to the other end. The faster the atoms move, the greater is the diffusion rate, so the diffu sion rate is proportional to the rms speed of the atoms. The atomic mass of ideal gas A is 1.0 u, and that of ideal gas B is 2.0 u. For diffusion through the same channel under the same conditions, find the ratio of the diffusion rate of gas A to the diffusion rate of gas B.

Explore the relationship between different units of pressure by filling in the table below.

$$\scriptstyle \begin{array}{|l|l|l|} \hline \text { Unit Name } & \text{Conversion ratio:} & \text{Conversion Ratio:}\\ \text { (unit symbol) } & \text{1atm = \_\_\_\_\_} & \text{1 kPa = \_\_\_\_}\\ \hline \text { kilopascal ( )} \\ \hline\text { millimeters of } \\ \text { mercury ( ) } \\ \hline \text { torr } \\ \hline\text { pounds per square } \\ \text { inch ( or ) } \\ \hline \text { atmosphere ( ) } \\ \hline \end{array}$$

Compare and contrast the following paired concepts as they relate to the properties of liquids by completing the following statements. Density and compression: A liquid can take the ________, but its volume is ____. The density of a liquid is ____ than the density of the same substance as a ____. Liquids cannot usually be ______ except under ____ pressure. Fluidity and viscosity: Fluidity is the ability to ____. Liquids flow through each other but at a ______ than ____ do. Viscosity is the measure of the _____ of a liquid to ____. The stronger _______ slowdown the ability to flow, which ______ resistance (viscosity). Viscosity and temperature: Temperature affects the _____ of a _____. Viscosity ______ with temperature.

Your friend is mistaken about the place of origin of the following famous people. Make the statements negative and then tell where they are from, using the cues provided. Modelo: Antonio Banderas es de México. (España) Antonio Banderas no es de México. Es de España.

Shakira y Juanes son de España. (Colombia)

Your friend is mistaken about the place of origin of the following famous people. Make the statements negative and then tell where they are from, using the cues provided. Modelo: Antonio Banderas es de México. (España) Antonio Banderas no es de México. Es de España.

Frida Kahlo y Diego Rivera son de Argentina. (México)

For this adjective, name two famous people, cartoon characters, or people in your school whom it fits. Then write a sentence that describe both of them.

Modelo:

A: Creo que Cameron y Antonio Banderas are talentosos.

• atrevido(a)

For this adjective, name two famous people, cartoon characters, or people in your school whom it fits. Then write a sentence that describe both of them.

Modelo:

A: Creo que Cameron y Antonio Banderas are talentosos.

• divertido(a)

For this adjective, name two famous people, cartoon characters, or people in your school whom it fits. Then write a sentence that describe both of them.

Modelo:

A: Creo que Cameron y Antonio Banderas are talentosos.

• trabajador(a)

For this adjective, name two famous people, cartoon characters, or people in your school whom it fits. Then write a sentence that describe both of them.

Modelo:

A: Creo que Cameron y Antonio Banderas are talentosos.

• serto(a)