Chapter 3.1 States of matter

Question 1

What is the particle arrangement in a solid?

Answer 1

The particles in a solid are packed closely together and vibrate around fixed positions.

Question 2

What is the particle arrangement in a liquid?

Answer 2

The particles in a liquid are also closely together but can slip and slide over each other in random motion.

Question 3

What is the particle arrangement in a gas?

Answer 3

The particles in a gas have, on average, lots of space between them and zoom around randomly.

Question 4

What is transferred in melting and boiling?

Answer 4

Energy is transferred from the surroundings to the substance.

Question 5

What is transferred in freezing and condensing?

Answer 5

Energy is transferred from the substance to the surroundings.

Question 6

Name a property of a solid, liquid and gas.

Answer 6

Solid- has a fixed shape and volume.
Liquid- has a fixed volume but they can flow and change their shape.
Gas- has no fixed shape or volume and can be compressed easily.