REDOX
- Created by: LauraNannini
- Created on: 18-04-20 11:10
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- Topic 3
- REDOX reactions
- Oxidation is the loss of electrons
- Oxidizing agents is a species that oxidizes another species by removing electrons. The oxidizing agent gets reduced in return
- Reduction is the gain electrons
- Reducing agents is a species that reduces another species by giving electrons. Reducing agents are being oxidized in return
- REDOX reaction only occur if reduction and oxidation is happening at the same time
- Disporportionation
- Simultaneous oxidation and reduction of an element in a single reaction
- Oxidation is the loss of electrons
- Oxidation numbers
- Element on its own = 0
- Sum of Ox number of all elements in a neutral compound = 0
- Sum of OX numbers of all elements in an ion is = charge of the ion
- The more electronegative in a substance is given a negative oxidation number
- Flourine is always= -1
- Hydrogen is always 1 except for when except for when its with a less electronegative element it then becomes -1
- Oxygen = -2 except in peroxides when its -1 and with flourine where it is +1
- Balancing with electrons
- Two half ionic equations have to have the same number of electrons in order to add the half equations together
- H+ ions can also be added to balance the equations
- If there is an in balance of O2 molecules water can be added
- REDOX reactions
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