StoichiometryMass–Mole Conversion281Choose the best answerHow many moles are present in 0.10 kg Ca?A0.0025 molB0.25 molC0.025 molD2.5 mol Like 0 Discuss 0Share
Stoichiometry Stoichiometry MCQS#Mole Concept282Choose the best answerWhich sample contains the greatest number of molecules?A5 mol CH₄B10 mol N₂C15 mol COD20 mol N₂O Like 11 Discuss 0Share
Stoichiometry 11#Elements and Molecules283Choose the best answerWhich pair contains molecules of elements rather than compounds?AO₂ and N₂BH₂O and CO₂CNH₃ and CH₄DHCl and H₂O Like 0 Discuss 0Share
StoichiometryLimiting Reagent284Choose the best answer2 mol Al and 3 mol O₂ react according to: 4Al + 3O₂ → 2Al₂O₃ Which is the limiting reagent?AO₂BAl₂O₃CAlDNone of these Like 0 Discuss 0Share
BasicsStoichiometry #Mole Concept285Choose the best answerWhich statement is true for 1 mol of O₂ and 1 mol of CO₂?AThey have the same massBThey contain the same number of moleculesCThey contain the same total number of atomsDThey contain the same number of electrons Like 0 Discuss 0Share