StoichiometryMass–Mass Stoichiometry121Choose the best answerWhat mass of O₂ is required to react completely with 0.6 g C? C + O₂ → CO₂A32 gB16 gC1.6 gD0.8 g Like 0 Discuss 0Share
StoichiometryLaw of Conservation of Mass122Choose the best answerWhich statement is always true for a balanced chemical reaction?ATotal moles of reactants and products are equalBTotal gas volumes of reactants and products are equalCTotal mass of reactants and products is equalDAll of these Like 0 Discuss 0Share
StoichiometryMass–Volume Stoichiometry123Choose the best answerWhat volume of CH₄ at STP (273 K and 1 atm) is required to react completely with 3.2 g O₂? CH₄ + 2O₂ → CO₂ + 2H₂OA4.48 LB2.24 LC1.12 LD0.56 L Like 0 Discuss 0Share
Stoichiometry#Isotopes#Stable Isotopes124Choose the best answerWhich of the listed elements are monoisotopic? 1. Arsenic 2. Fluorine 3. Gold 4. IodineA1 and 2 onlyB2 and 3 onlyC1, 2 and 3 onlyD1, 2, 3 and 4 Like 0 Discuss 0Share
StoichiometryRelative Atomic Mass125Choose the best answerThe mass of an atom compared with 1/12 of the mass of a ¹²C atom is called:AOne moleBGram atomic massCAtomic numberDRelative atomic mass Like 0 Discuss 0Share