Hydrogen peroxide decomposes into water and oxygen. When a 1g. lump of MnO2 is added to hydrogen peroxide the decomposition is faster and 1g. of MnO2 is still left afterwards. Explain.
2007-02-07 11:25:34 · 3 answers · asked by Anonymous in Science & Mathematics ➔ Chemistry
The MnO2 acts as a catalyst. It provides the surface area for the chemical reaction to occur, but is not used up during the reaction. It is not listed as a reactant nor a product since none of the catalyst is used. It is written above the "yield" sign to show a special condition needed for the reaction to occur faster.
2007-02-07 11:29:31 · answer #1 · answered by physandchemteach 7 · 0⤊ 0⤋
Hydrogen peroxide (H2O2) is a very pale blue liquid which appears colourless in a dilute solution, slightly more viscous than water. It has strong oxidizing properties and is therefore a powerful bleaching agent that has found use as a disinfectant, as an oxidizer, and in rocketry (particularly in high concentrations as high-test peroxide (HTP) as a monopropellant), and in bipropellant systems.
2007-02-07 19:33:55 · answer #2 · answered by fbi f 1 · 0⤊ 0⤋
Your question was answered cxorrectly a little while back. Go back there and award the person 10 points!
2007-02-07 19:29:57 · answer #3 · answered by steve_geo1 7 · 0⤊ 0⤋