C1.1.2 - Chemical and Physical Changes Flashcards Preview

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Flashcards in C1.1.2 - Chemical and Physical Changes Deck (6):
1

What is a physical change?

A change that does not create a new substance
A change that is reversible

2

State examples of a physical change

Freezing juice to make an ice lolly
Mixing sand with water
Dissolving sugar in water
Changing states of matter
Etc

3

What is a chemical change?

A change that creates a new substance
A change that is usually irreversible

4

State examples of chemical changes

Steel rusting
Neutralisation
Cooking

5

What happens to a substance’s particles while it’s changing state

The arrangement and movement change to how the particles in that usual state would be like

6

What happens to a substance’s particles while going through a chemical reaction?

The particles break up and join together in many different ways to create new substances