According to the spectrum seen below, which set of photons were absorbed by the element

The name of the ion, s2-, is: sulfurous ion sulfide ion sulfur ion sulfate ion

What reaction is taking place? 02 + c3h8 = h20 + co2

Most materials are not magnetic because their magnetism has worn off. their magnetic domains are arranged randomly. they lack magnetic fields. earth’s heat has destroyed their magnetism.