Chemistry 0620 · IGCSE · Relative masses of atoms and molecules

Relative masses of atoms and molecules — practice question

The element sulfur occurs in several different minerals. Which mineral has the highest percentage by mass of sulfur?

  • Abarite, $\text{BaSO}_4$
  • Bgalena, $\text{PbS}$
  • Cgypsum, $\text{CaSO}_4$
  • Dpyrite, $\text{FeS}_2$

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