StoichiometryCombustion analysis251Choose the best answerWhich substance absorbs water during combustion analysis?A50% KOHB50% Mg(OH)₂CMg(ClO₄)₂DCaO Like 0 Discuss 0Share
StoichiometryLimiting Reagent252Choose the best answer22.4 dm³ CH₄ and 11.2 dm³ O₂ are mixed at STP: CH₄ + 2O₂ → CO₂ + 2H₂O Which is the limiting reagent?ACH₄BO₂CCO₂DH₂O Like 0 Discuss 0Share
StoichiometryLimiting Reagent253Choose the best answerIn the decomposition: 2H₂O → 2H₂ + O₂ the reactant that limits the amount of products is:AH₂BO₂CH₂ODNone of these Like 0 Discuss 0Share
StoichiometryMass–Mass Stoichiometry254Choose the best answerIf 10 g CaCO₃ decomposes completely, what mass of CO₂ is released? CaCO₃ → CaO + CO₂A44 gB22 gC4.4 gD2.2 g Like 0 Discuss 0Share
StoichiometryMole–Volume Stoichiometry255Choose the best answer0.1 mol CS₂ undergoes complete combustion: CS₂ + 3O₂ → CO₂ + 2SO₂ What volume of SO₂ is produced at STP (273 K and 1 atm)?A4.48 dm³B2.24 dm³C1.12 dm³D5.6 dm³ Like 0 Discuss 0Share