Why does potassium manganate act as a strong oxidant?
In this compound manganese has an oxidation state of +7 but it is much more stable at +2 so it is strongly driven to reduce its state by gaining 2 electrons
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How does potassium manganate change colour in the presence of a reductant?
From purple to colourless
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As what agent does potassium iodide act?
Reducing agent
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How des potassium iodide change colour in the presence of an oxidising agent?
From colourless to red-brown
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Why are oxidising/reducing agents used in labs?
They show a colour change so they are a good visual indicator
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How are oxidising agents used outside of lab? Why?
Cleaning products- they kill bacteria, bleaches- they break down coloured compounds, breathalysers- potassium dichromate changes from orange to green
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