Sulfur + Oxygen = Sulfur Dioxide
kno3 + sulfur + C
In Alchemy Classic, you can create NO2 (nitrogen dioxide) by combining nitrogen oxide and oxygen.
In Alchemy Classic, you can create oxygen by combining carbon dioxide and water. This can be achieved by first creating carbon dioxide through various combinations and then combining it with water to form oxygen.
You cant make alchemy classic, its a game! Though you can download it and play it!
in alchemy classic its 2 bacteria but it might be different in the original (assuming your playing alchemy classic)
Bacteria + swamp = sulfur + worm
caoutchouc
lplolol
You add oxygen to sulfur to make sulfur dioxide.
freezer
2x tube
steam and air.