Chemistry

a 9.85 g sample of an unknown metal M is burned in the presence of excess oxygen, producing the oxide M2O3 (s) and liberating 57.8kJ of heat at constant pressure. What is the identity of the metal?

4M(s) + 3O2(g) yields 2M2O3(s)

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asked by Kelly
  1. Do you have a table of heats of combustion?

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    posted by DrBob222

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