Answer:
2Na + 2H₂O -> 2NaOH + H₂; 4 moles of H₂ will be produced
Explanation:
Begin by balancing the equation:
2Na + 2H₂O -> 2NaOH + H₂
Reactants: 2 Na, 4 H, 2 O
Products: 2 Na, 4 H, 2 O
Convert 8 moles of Na to H₂ by using the stoichiometric ratios from the balanced equation:
8 mol Na x 1 mol H₂/2 mol Na = 4 mol H₂
