This is sulfur
the reactions of nonmetal oxides with water.
Sulfur is a yellow nonmetal commonly found near active volcanoes. It is used in various industrial processes to produce sulfuric acid, which has numerous applications in manufacturing and chemical processes.
nonmetal
Nails are metal.
nonmetal
nonmetal
FeO is not a nonmetal; it is a compound composed of iron (a metal) and oxygen (a nonmetal).
Fluoride is the ion of fluorine, which is a nonmetal.
Nonmetal
Diamond is carbon which is a nonmetal
nonmetal
Sulfur is a nonmetal.