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Chemical Equations 2 The catalytic decomposition of KClO3 is represented...as seen on the previous page..by the equation: Several features of this equation are worth noting: A - The physical states of the participants are labeled by (s) for solid and (g) for gas. B - The triangle under the reaction arrow means that the reaction must be heated. C - The MnO2 above the reaction arrow indicates its status as a catalyst. D - The stoichiometric coefficients tell us that, for every 2 moles of KClO3 we get 3 moles of O2 and 2 moles of KCl.

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