Please answer the following question: Answer the following question given this paragraph: E XA MP L E 1 7 Hydrogen gas is generated by the reaction of nitric acid and elemental iron. The gas is collected in an inverted 2.00 L container immersed in a pool of water at 22C. At the end of the collection, the partial pressure inside the container is 733 torr. How many moles of H2 gas were generated?. Q: Hydrogen gas is generated by the reaction of nitric acid and what else? Choices: - gaseous iron - martian iron - carbon - elemental iron A:
A:
elemental iron