Stoichiometry Stoichiometry MCQS#Formula Unit41Choose the best answerFor an ionic compound such as NaCl, the smallest representative unit is called:AMoleculeBFormula unitCAtomDMole Like 0 Discuss 0Share
Stoichiometry Stoichiometry MCQS#Avogadro's Number42Choose the best answerWhat is the correct meaning of 1 mol of CaCO₃?A6.02 × 10²³ molecules of CaCO₃B6.02 × 10²³ formula units of CaCO₃C6.02 × 10²³ Ca atoms onlyD6.02 × 10²³ grams of CaCO₃ Like 0 Discuss 0Share
Stoichiometry Stoichiometry MCQS#Mole Concept43Choose the best answerHow many moles of hydrogen atoms are present in 0.25 mol of CH₄?A0.25 molB0.50 molC1.00 molD4.00 mol Like 0 Discuss 0Share
Stoichiometry Stoichiometry MCQS#Atomic Structure#Isotopes44Choose the best answerWhich property remains the same in all isotopes of an element?ANumber of protonsBNumber of neutronsCMass numberDAtomic mass Like 0 Discuss 0Share
Stoichiometry Stoichiometry MCQS#Formula Mass45Choose the best answerWhich term is used for the mass of an ionic compound such as MgO?AMolecular massBFormula massCAtomic massDIsotopic mass Like 0 Discuss 0Share