Gases End of lesson Quiz

What is the particle arrangement like in a solid?

• Particles are closely packed in a fixed pattern.

• Particles move freely and are spaced out.

• Particles are free to move but closely packed.

Describe the particle arrangement in a gas according to the particle model.

• Particles are closely packed and vibrate in fixed positions.

• Particles move freely and have a lot of energy.

• Particles are arranged in a fixed pattern but can slide past each other.

Which gas is essential for combustion (burning) and is necessary for most living organisms to survive?

• Nitrogen

• Oxygen

• Carbon Dioxide

Which gas is commonly found in fizzy drinks and contributes to their bubbles?

• Carbon Dioxide

• Hydrogen

• Water Vapor

What property of gases allows them to fill the entire volume of a container?

• Expansion

• Contraction

• Rigidity

Identify the gas that makes up the largest portion of the Earth's atmosphere.

• Oxygen

• Nitrogen

• Hydrogen

According to the particle model, what happens to the particles of a gas when the temperature is increased?

• They slow down.

• They move faster.

• They become more rigid.

How do particles in a liquid differ from those in a gas according to the particle model?

• Liquid particles are closely packed but can move past each other.

• Liquid particles are fixed in a pattern.

• Liquid particles are spaced out and move freely.