1.1 Oxidation Numbers
- Created by: rxchelhorne
- Created on: 17-02-16 14:35
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- Oxidation Numbers
- The oxidation number of an element is always 0
- H2
- 02
- Mg
- Na
- In a compound the overall oxidation number is equal to 0
- CO2 = the oxidation number overall is 0
- (The oxygen is -2 so because there's two of the the oxidation number of carbon must be +4 to cancel it out and make 0)
- CO2 = the oxidation number overall is 0
- In an ion the sum equals the overall charge
- NO3- the overall oxidation number is equal to -1
- Oxygen is -2 , and as there's 3 oxygen's they equal -6. Nitrogen is therefore +5 as -6 + 5 =-1
- NO3- the overall oxidation number is equal to -1
- Oxygen's oxidation number is always -2, except for when with fluorine or in peroxides
- H2O2 = The oxidation number of oxygen is -1 as hydrogen is always +1 so in order to get an overall number of 0 oxygen must be +1
- Hydrogen's oxidation number is always +1, except for in metal hydrides
- NaH = Hydrogen must be -1 and Sodium is +1
- The oxidation number of an element is always 0
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