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Oxidation numbers and redox equations

 Assumed prior knowledge

The Reactivity Series

Rust forms on iron and steel as a result of a redox reaction between iron and oxygen.  2.15 - 2.20 Loss and gain Oxidation and redu...
https://www.mychem.co.uk/index.php/igcse-chemistry/inorganic-chemistry/reactivity-series

Oxidation numbers: Observing the rules

 A classic analysis method

iron tablets
Iron tablets contain Iron II ions.

A fairly simple titration can be used to determine the amount of iron in regular iron tablet - used to treat Anaemia. 

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Balancing bromate

Rhubarb, rhubarb.

  • Rhubarb toxicity is primarily associated with the leaves of the plant, which contain high concentrations of oxalic acid. Oxalic acid is a naturally occurring compound found in many plants, but the levels in rhubarb leaves are particularly high.

Answer

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