b Oxygen i Prepare oxygen safely by decomposition of hydrogen peroxide solution Put 20 mL hydrogen peroxide into a 100 mL bottle Fix a delivery tube to the bottle Add two spatulas of manganese dioxide and oxygen bubbles off for collection ii Oxygen is colourless and has no smell To test whether the testtube contains oxygen light a splint of dry wood blow out the flame leaving a glowing splint then put the glowing splint in a testtube of oxygen The glowing splint bursts into flame This experiment is called the glowing splint test iii Use an Lshape piece of nichrome wire with a shield to fit on the top to protect your hand Fix steel wool into a loop in the lower end of the Nichrome wire Heat the steel wool to red hot in a Bunsen burner flame then inserts it quickly into a testtube of oxygen iv Fix a small piece of charcoal into the loop in the lower end of the Nichrome wire Ignite the charcoal in the Bunsen burner flame and then insert it quickly into another testtube of oxygen v Dip the loop in the lower end of the Nichrome wire into sulphur powder Ignite the sulphur powder in a Bunsen burner flame and then insert it quickly into another testtube of oxygen