$1.15\,\text{g}$ of a metal reacts with $300\,\text{cm}^3$ of oxygen at $298\,\text{K}$ and $1\,\text{atm}$ pressure, forming an oxide that contains $\text{O}^{2-}$ ions. Which metal could it be?
- Acalcium
- Bmagnesium
- Cpotassium
- Dsodium
Chemistry 9701 · AS & A Level · Atoms, molecules and stoichiometry