what is silicon used for? done matches gunpowder glass steel can coating

Brief Explanations:

Silicon is a key component in glass - making. It is used in the form of silica (silicon dioxide) in the production of glass. Matches typically use chemicals like phosphorus, gunpowder has ingredients such as sulfur, charcoal and potassium nitrate, and steel can coating usually involves materials like tin or chromium. Silicon is not a main component in matches, gunpowder or steel can coating.

Answer:

glass