C + O2 –> CO2 what kind of reaction is 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.

Answer ozone (o3) is made of three atoms of oxygen, it is a molecule;

Neptunium is the only of those 4 that doesn’t occur naturally.