Edexcel IAL Chemistry AS 8.1 Oxidation numbers
Edexcel IAL Chemistry AS 8.1 Oxidation numbers
Write the known values for H, O and any fixed-charge element, include each subscript, set their sum to the species charge and solve for the unknown value.
How this is tested
- Justify an oxidation number by summing element values to the compound's overall charge.
- Calculate an element's oxidation-number change between the stated reactant and product.