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Oxygen!!!

However, you do NOT add oxygen, it is combined.

Yellow elemental sulphur is heated in a flow of oxygen gas. The product is sulphur dioxide. It has a very acrid/acidic smell, so do NOT breath it in.

Sulphur dioxide can be dissolved in water to form Sulphurous Acid.

The reaction equation for the combination of sulphur and oxygen is ; -

S(s) + O2(g) == heat==> SO2(g)

The reaction equation for the combination of sulphur dioxide and water is:-

SO2(g) + H2O(l) == H2SO3(aq)

NOTE this is sulphurOUS Acid.

SulphurIC Acid has the formula ' H2SO4 '. one extra oxygen in combination.

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lenpollock

Lvl 17
2mo ago

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