How do I collect the oxygen from the reaction of hydrogen peroxide and manganese dioxide?
I believe that the reaction between the black, powdery manganese dioxide found within carbon-zinc batteries, and household-variety hydrogen peroxide produces oxygen. However, it is my understanding that oxygen is heavier than air, and will therefore that collecting the gas will not be as simple a matter as seen in steven07's Instructable on producing and collecting hydrogen
Unless I'm completely wrong, and a reaction that produces oxygen will inflate the balloon. :P
Or, does anyone else have another way of collecting the gas?