Read the given equation.
2Na+2H₂0 - 2NaOH + H₂
During a laboratory experiment, a certain quantity of sodium metal reacted with water to produce sodium hydroxide and hydrogen gas. What
was the initial quantity of sodium metal used if 8.40 liters of H₂ gas were produced at STP? (3 points)
O a
Ob
Oc
Od
17.2 grams
15.8 grams
12.3 grams
10.0 grams
