Chemistry - Stoichiometry - Mass-to-mass calculations - Stoichiometry Assessment

A 6-question assessment combining all stoichiometry skills. Q1: 'What is the molar mass of Ca(OH)₂?' (A: 74, B: 56, C: 100, D: 40). Q2: '2H₂ + O₂ → 2H₂O. How many moles of O₂ react with 6 moles of H₂?' (A: 3, B: 6, C: 12, D: 2). Q3: 'How many grams is 0.5 mol of NaOH (molar mass 40)?' (A: 80, B: 20,