A portion of propanoic acid with a mass of $3.70\,\text{g}$ is reacted with excess magnesium. Another portion of propanoic acid with a mass of $3.70\,\text{g}$ is reacted with excess sodium. In each case, the reaction goes to completion and a gas is produced. Which row is correct?
Chemistry 9701 · AS & A Level · Atoms, molecules and stoichiometry