unit C6 chemistry out there part two
- Created by: Andrei stephen
- Created on: 09-06-13 17:14
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- unit C6 chemistry out there
- Hydrogen oxygen fuel cells
- this fuel cell uses hydrogen as its fuel when oxygen reacts with it produces energy this can be used to produce a potential difference or voltage this causes a current to flow when it is in a circuit
- soap
- soap is made when oil or fat is reacted with hot sodium hydroxide solution this is an example of a hydrolysis reaction
- during the saponification glycerol is also produced because the sodium hydroxide breaks down the fat / oil molecule and causes the bonds between the fatty acid and glycerol to break
- detergent and what in it
- active detergent this dose the cleaning
- rusting and sacrificial protection
- it weakens the metal you can stop rusting by galvanising oiling/painting alloying or using sacrificial protection
- this is where instead of the air and water reacting with iron it reacts with the more reactive metal near it such as zink or any metal more reactive
- Hydrogen oxygen fuel cells
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