Sulfur Oxide
No. Sulfur dioxide is a compound, which makes it a pure substance, not a mixture.
This substance cannot be water, because passing an electric current through water, in a process called electrolysis, produces hydrogen and oxygen gas, not oxygen and sulfur.
Sulfur trioxide
Oxygen family or chalcogen
When sulfur combines with oxygen, it undergoes a chemical reaction to form sulfur dioxide. This is a chemical property of sulfur because it involves a change in the chemical composition of the substance.
As the name implies, its constituent elements are sulfur and oxygen. Sulfur trioxide has the formula SO3, which means it contains one sulfur atom and three oxygen atoms.
Sulfur burning is a chemical change because it involves a chemical reaction that results in the formation of new substances. When sulfur burns, it combines with oxygen in the air to form sulfur dioxide, which is a different chemical compound with different properties than sulfur alone.
The combustion of sulfur is called sulfur combustion or sulfur burning. When sulfur combusts, it reacts with oxygen to produce sulfur dioxide gas.
S + O2 à SO2 This is a combustion reaction
It can be, as long as no other substances are present.
chalcogens
The compound made by combining sulfur with oxygen to make SO2 is called sulfur dioxide.