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Anonymous
ANSWERS: 2
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Are you sure it was nor *manganese* oxide? "Manganese dioxide (MnO2) is the catalyst used to speed up the release of oxygen gas from hydrogen peroxide. 2H2O2 + MnO2 -> MnO2 + 2H2O + O2 2H2O2 -> 2H2O + O2 The manganese dioxide is in the form of a black powder in the flask. Hydrogen peroxide solution is in a dropping funnel. Slowly drip the hydrogen peroxide solution into the flask to maintain a steady quiet production of oxygen gas. After a minute, collect the oxygen gas in gas jars of water placed upside down on a beehive shelf in a basin of water. (The gas that first escapes from the flask and delivery tube is air pushed out by the advancing oxygen.) Test the gas for purity: relights a glowing splint if it is pure oxygen." Source and further information: http://www.skoool.ie/skoool/examcentre_jc.asp?id=1980 See also: http://www.answerbag.com/q_view/764449 http://answers.yahoo.com/question/index?qid=20070815045127AAiOiYL
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im sure you will reveal all lol
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