Which reactant will be in excess, and how many moles of it will be left over? Hydrogen (H2) will be the excess reactant, and moles of it will be left over.

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Ibelieve the answer is balance! hope my answer has you : )

The main types of electromagnetic radiation. radio  waves have  the lowest frequencies  and  longest  wavelengths, while gamma  waves have highest frequencies  and shortest wavelengths. the wavelengths vary across the electromagnetic spectrum from about 10–15 m to more than 104 m.hope it !

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