StoichiometryStoichiometric Principles76Choose the best answerSelect the correct statements: I. 12 g O₂ can completely react with 13.5 g Al to form Al₂O₃. II. Under ideal stoichiometric conditions, actual yield does not exceed theoretical yield. III. 1 mol C₃H₈ and 1 mol C₃H₄ each produce 3 mol CO₂ on complete combustion. IV. 1 g S combines with 1 g O₂ to produce 1 g SO₂.AI, II, III and IVBII, III and IVCI, II and IIIDI, III and IV Like 0 Discuss 0Share
StoichiometryBalancing Chemical Equations77Choose the best answerWhen the equation: C₄H₁₀ + O₂ → CO₂ + H₂O is balanced using the smallest whole-number coefficients, the coefficient of O₂ is:A3B7C9D13 Like 0 Discuss 0Share
Stoichiometry#Atomic Structure#Subatomic Particles78Choose the best answerWhich particle has a mass closest to 1 amu?AOne electronBOne protonCOne carbon-12 atomDOne oxygen atom Like 0 Discuss 0Share
StoichiometryNumber of Atoms in a Given Mass79Choose the best answerWhich 1 g sample contains the greatest number of atoms?ANiBCaCN₂DB Like 0 Discuss 0Share
StoichiometryMole Concept and Number of Atoms80Choose the best answerHow many carbon atoms are present in 18 g glucose, C₆H₁₂O₆?A6.02 × 10²²B6.02 × 10²³C3.6 × 10²²D3.6 × 10²³ Like 0 Discuss 0Share