(a) The head of a safety match contains KC1O3 and this reacts with red phosphorus which is combined with glass powder on the side of the match box. Write an equation for the reaction that occurs when the match is struck. Show that changes in oxidation states balance. Comment on the role of the glass powder.
(b) In a ‘strike-it-anywhere’ match, the match head contains P4S3 and KC1O3. Use oxidation state changes to suggest what happens when you strike the match, assuming that additional O2 is required for combustion.
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