StoichiometryStoichiometric Coefficients and Mole Ratios1741Choose the best answerThe balanced equation: N₂ + 3H₂ → 2NH₃ correctly represents that:A14 g N₂ are formedB3 mol H₂ are formedC2 mol NH₃ are reactingD6 g H₂ react to form 34 g NH₃ Like 0 Discuss 0Share
StoichiometryStoichiometric Equivalents and Mole Ratios1742Choose the best answerFor the reaction: CO₂ + C → 2CO which equivalence is NOT correct?A1 mol CO₂ ≡ 2 mol COB1 mol C ≡ 56 g COC44 g CO₂ ≡ 28 g COD44 g CO₂ ≡ 12 g C Like 0 Discuss 0Share
ElectrochemistryElectron Transfer and Oxidation Number Change1743Choose the best answerWhich change involves transfer of two electrons per metal atom?AMnO₄²⁻ → MnO₂BMnO₄⁻ → Mn²⁺CCrO₄²⁻ → Cr³⁺DCr₂O₇²⁻ → 2Cr³⁺ Like 0 Discuss 0Share
SolidsNaCl Crystal Structure1744Choose the best answerA conventional unit cell of NaCl contains:A1 NaCl formula unitB2 NaCl formula unitsC4 NaCl formula unitsD8 NaCl formula units Like 1 Discuss 0Share
Atomic StructureHund's Rule and Electronic Configuration1745Choose the best answerWhich ground-state electronic configuration represents nitrogen, Z = 7?A1s² 2s² 2pₓ² 2pᵧ¹B1s² 2s² 2pₓ¹ 2pᵧ¹ 2pz¹C1s² 2s¹ 2pₓ² 2pᵧ¹ 2pz¹D1s² 2s² 2pₓ³ Like 0 Discuss 0Share