Exploring Gas Laws and Changes

Which of the following is the equation for the Ideal Gas Law?

What is the primary difference between a chemical change and a physical change?

• Chemical changes are reversible, while physical changes are not.

• Chemical changes result in new substances, while physical changes do not.

• Physical changes involve energy, while chemical changes do not.

• Physical changes result in new substances, while chemical changes do not.

Tags

NGSS.MS-PS1-2

Which of the following is a physical property of matter?

• Flammability

• Reactivity with acid

• Density

• Ability to rust

Tags

NGSS.MS-PS3-1

What phase change occurs when a solid turns directly into a gas?

• Melting

• Freezing

• Sublimation

• Condensation

Tags

NGSS.MS-PS1-4

According to the kinetic molecular theory, what happens to the particles of a gas as the temperature increases?

• They move slower.

• They move faster.

• They stop moving.

• They move at the same speed.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Which of the following is an example of a chemical change?

• Ice melting

• Sugar dissolving in water

• Iron rusting

• Water boiling

Tags

NGSS.MS-PS1-2

Which phase change results from an increase of heat energy and temperature?

• Freezing

• Condensation

• Deposition

• Vaporization

Tags

NGSS.MS-PS1-4

Which option orders the states of matter from having particles closest together to farthest apart?

• solid, liquid, gas
• gas, liquid, solid
• liquid, gas, solid
• gas, solid, liquid

A gas's volume increases while the pressure stays constant. What happens to the temperature?

• It increases

• It decreases

• It stays the same

Tags

NGSS.MS-PS1-4

What is the term for the temperature at which a liquid becomes a gas?

• Melting point

• Freezing point

• Boiling point

• Sublimation point

Tags

NGSS.MS-PS1-4