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A student combusted magnesium ribbon in a crucible to produce magnesium oxide according to the reaction:
Mg + O2 → MgO.
Use the data below to calculate the mass of the oxygen reacted.
Mass of crucible + lid: 23.321
Mass of magnesium + crucible + lid: 23.914
Mass of magnesium oxide + crucible + lid: 24.821


Sagot :