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1. Identify the reducing agent in the following reactions.
\(4NH_3\) + \(5O_2\) → \(4NO\) + \(6H_2O\)
A reducing agent (reductant) is a substance that reduces another substance (by removing oxygen or adding hydrogen) while also being .
\(4NH_3\) + \(5O_2\) → \(4NO\) + \(6H_2O\)
In the above reaction, ammonia (\(NH_3\)) is the , because it is oxidised by oxygen (\(O_2\)) to form nitric oxide (\(NO\)) and water (\(H_2O\)).
2. Identify the oxidising agent (oxidant) in the following reaction.
\(Pb_3O_4\) + \(8HCl\) → \(3PbCl_2\) + \(Cl_2\) + \(4H_2O\)
An oxidising agent (oxidant) is a substance that another substance (by losing electrons or removing hydrogen or adding oxygen, or increasing oxidation state) while also being reduced.
\(Pb_3O_4\) + \(8HCl\) → \(3PbCl_2\) + \(Cl_2\) + \(4H_2O\)
\(Pb_3O_4\) is reduced to \(PbCl_2\) while \(HCl\) is to \(Cl_2\).
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