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
3
Q
What is a chemical change?
A
A change that crates a new substance
A change that is usually irreversible
4
Q
State examples of chemical changes
A
Steel rusting
Neutralisation
Cooking
5
Q
What halogens to a substance’s particles while it’s changing stage?
A
The arrangement and movement of the particles change to what state it is in
6
Q
What happens to a substance’s particles while going through a chemical reaction?
A
The particles break he and then join together in different ways. This is why new substances are made
