reversible and irreversible reactions
- Created by: 15emmroc.
- Created on: 24-01-20 14:20
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- reactions
- reversible
- A reversible change is a change that can be undone or reversed.
- If you can get back the substances you started the reaction with, that's a reversible reaction.
- A reversible change might change how a material looks or feels, but it doesn't create new materials.
- Examples of reversible reactions include dissolving, evaporation, melting and freezing.
- irreversible
- Heating
- Heating can cause an irreversible change.
- For example you heat a raw egg to cook it. The cooked egg cannot be changed back to a raw egg again.
- Heating can cause an irreversible change.
- Mixing
- Mixing substances can cause an irreversible change.
- For example, when vinegar and bicarbonate of soda are mixed, the mixture changes and lots of bubbles of carbon dioxide are made.
- These bubbles and the liquid mixture left behind, cannot be turned back into vinegar and bicarbonate of soda again.
- For example, when vinegar and bicarbonate of soda are mixed, the mixture changes and lots of bubbles of carbon dioxide are made.
- Mixing substances can cause an irreversible change.
- Burning
- Burning is an example of an irreversible change.
- When you burn wood you get ash and smoke. You cannot change the ash and smoke back to wood again.
- Burning is an example of an irreversible change.
- new materials are always formed.
- it cannot be changed back again.
- Heating
- reversible
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