Chemical Changes Flashcards
1
Q
Mixture
A
Made up of one or more diffrent chemical substances
2
Q
Atoms
A
They form everything
3
Q
Pure substances
A
Made up of only one type of moleclue
4
Q
Periodic Tables
A
A way to categorised diffrent elements
5
Q
Physical change
A
A change that is reversible and no new substance is formed
6
Q
Chemical change
A
A change that is not reversible and a new substances is formed
7
Q
Melting
A
A change of a solid into a liquid when heat is applied
8
Q
Boiling
A
The rapid vaporisation of a liquid
9
Q
Solid
A
A state or matter thats atoms are close together
10
Q
Exothermic
A
A change that gives off heat
11
Q
Endothermic
A
A change that takes in heat
