"Standard temperature" by itself means 273.15 K.
I've never heard the phrase "standard temperature of sulfur" and have no idea what whomever used it might have meant.
Sulfur trioxide is a compound, and at standard temperature and pressure is a gas and therefore is homogeneous.
Sulfur is at room temperature in solid state.
All of the products of a reaction between pure iron and pure sulfur are solids at standard temperature and pressure. Doesn't matter if you're talking about iron(II) or iron (III), or at what stoichiometric ratio the sulfur bonds with the iron.
Canyon Diablo Troilite (FeS)
Hydrogen, Carbon, Nitrogen, Oxygen, Sulfur.
At standard temperature and pressure, sulfur is a solid.
Sulfur is solid at room temperature. Its melting point is 115.21 oC, 239.38 °F
Sulfur trioxide is a compound, and at standard temperature and pressure is a gas and therefore is homogeneous.
Sulfur [note correct spelling] is indeed a solid at standard temperature and pressure.
Elemental sulfur is a bright yellow crystalline solid at room temperature.
At room temperature, sulfur is a solid.Yellow solid in room temperature.
Sulfur is Solid at room temperature.
"Sulfur" can be spelled as both "sulfur" and "sulphur" due to historical variations in English spelling. "Sulfur" is the preferred spelling in American English, while "sulphur" is more common in British English. Both spellings are considered correct.
sulfur dioxide decreases temperature because it is a heavy gas
Sulfur is a yellow solid at room temperature.
Sulfur is at room temperature in solid state.
All of the products of a reaction between pure iron and pure sulfur are solids at standard temperature and pressure. Doesn't matter if you're talking about iron(II) or iron (III), or at what stoichiometric ratio the sulfur bonds with the iron.