Chemistry 9701 · AS & A Level · Atoms, molecules and stoichiometry

Atoms, molecules and stoichiometry — practice question

R is the oxide of the Period 3 element T. $5.00\,\text{g}$ of R contains $2.50\,\text{g}$ of T. Which element is T?

  • Amagnesium
  • Baluminium
  • Csilicon
  • Dsulfur

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