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The illustration to the left represents a mixture of nitrogen (blue ) and oxygen (red) molecules. If the molecules in the above illustration react to form NO2 according to the equation N2+2O22NO2, the limiting reagent is the number of NO2 molecules formed is and the number of molecules in excess is The illustration to the left represents a mixture of iodine (purple) and fluorine (green ) molecules. If the molecules in the above illustration react to form IF3 according to the equation I2+3F22IF3, the limiting reagent is the number of IF3 molecules formed is and the number of atoms/molecules in excess is