1.1.5

Changes of State 3

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Changes of State

Changes of state are physical changes.

Illustrative background for Physical (not chemical) changeIllustrative background for Physical (not chemical) change ?? "content

Physical (not chemical) change

  • When a material changes state, it is able to recover its old properties if the change is reversed.
  • Some chemical reactions are also reversible.
  • However, some chemical reactions are irreversible.
    • In irreversible chemical reactions, the material would not be able to return to its original properties.
Illustrative background for Conservation of massIllustrative background for Conservation of mass ?? "content

Conservation of mass

  • When a substance changes state, its mass is conserved (stays the same).

Jump to other topics

1States of Matter

2Elements, Compounds & Mixtures

3Atomic Structure

4The Periodic Table

5Chemical Formulae, Equations & Calculations

6Bonding

7Electrolysis

8Groups of the Periodic Table

9The Atmosphere

10Reactivity Series

11Metal Extraction

12Acids & Alkalis

13Chemical Tests

14Physical Chemistry

15Organic Chemistry

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