How many O2 moles are needed to react with 12.5 mol of SO2

A) the enthralling of formation for pure element in its standard state is always positivehope this : )

Non metal is an element or substance that is not a metal metal is a solid material that is typically hard, shiny, malleable, fusible, and ductile, with good electrical and thermal conductivitymetalloid is an element (e.g., germanium or silicon) whose properties are intermediate between those of metals and solid nonmetals. they are electrical semiconductors.

Fine out your self ponk