Page 14 - Curriculum Visions Dynamic Book

Reactivity of sulphur
Sulphur is one of the most reactive of all the elements. This is why sulphur will react with most metals (in the absence of air) to form sulphides and why many sulphur compounds are sulphides.
Sulphur will also react with oxygen in the air (a piece of iron sulphide left lying about will eventually change to iron sulphate) and will readily burn in oxygen
to produce sulphur dioxide gas.
In this demonstration, some sulphur powder is placed on a suitable metal holder and ignited in air. It is then introduced into
a gas jar filled with oxygen, where it burns with a blue flame.
 Some powdered sulphur, oxygen in a gas jar and a deflagrating spoon (a metal spoon in which sulphur is burned). Notice that the deflagrating spoon has a metal disc above it in order to protect anyone holding the spoon while the sulphur is burning. The disc also serves as a support for holding the spoon on the middle of the gas jar (as to the right).
Also...
Deflagration is the old word for combustion, hence “deflagrating spoon”.
Oxygen
EQUATION: Burning sulphur in air
Sulphur + oxygen ➪ sulphur dioxide S(s) + O2(g) ➪ SO2(g)
+➡
Sulphur
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