6. How many moles of O2 are required to react with 10 moles of SO2? 7. How many moles of SO2 are required to react with 6 moles of O2?
8. How many moles of the excess reagent are left?
9. How many moles of SO3 are produced?

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.