11. The RNA backbone is linked through a phosphate group. What type of bonding occurs between two consecutive nucleotides in RNA? (A)Ester (B) Amide (C) Hydrogen (D)Ionic (E) Hydrophobic

5. The following two reactions are important in the blast furnace production of iron metal from iron ore (Fe2O3): Using these balanced reactions, how many moles of O2 are required for the production of 2.51 kg of Fe? (Molecular weight of Fe = 55.85 g/mol) (A)33.7 moles (B) 15.0 moles (C) 135 moles (D)44.9 moles (E) 1.88 moles

11. The RNA backbone is linked through a phosphate group. What type of bonding occurs between two consecutive nucleotides in RNA?
(A)Ester
(B) Amide
(C) Hydrogen
(D)Ionic
(E) Hydrophobic

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