← Back to full paperPrevious questionNext question

Question 23

From Chemistry HL Paper 1A (May 2025, TZ2)

Grade your answerAnswer this question in practice mode and submit it for feedback.Practice under timed constraintsOpen the paper flow with timed full-exam navigation.
View source PDF page 11
  1. What are the limiting reactant and theoretical yield of hydrogen when 0.20 mol of magnesium reacts with 0.20 mol of hydrochloric acid?
    Mg(s) + 2HCl(aq) → MgCl2_2 (aq) + H2_2 (g)
Table with columns 'Limiting reactant' and 'Theoretical yield of H₂ / mol' and rows for options A-D.
Table with columns 'Limiting reactant' and 'Theoretical yield of H₂ / mol' and rows for options A-D.