C1.1.2 - Chemical and Physical Changes Flashcards
1
Q
What is a physical change?
A
A change that does not create a new substance
A change that is reversible
2
Q
State examples of a physical change
A
Freezing juice to make an ice lolly Mixing sand with water Dissolving sugar in water Changing states of matter Etc
3
Q
What is a chemical change?
A
A change that creates a new substance
A change that is usually irreversible
4
Q
State examples of chemical changes
A
Steel rusting
Neutralisation
Cooking
5
Q
What happens to a substance’s particles while it’s changing state
A
The arrangement and movement change to how the particles in that usual state would be like
6
Q
What happens to a substance’s particles while going through a chemical reaction?
A
The particles break up and join together in many different ways to create new substances
