Chemistry 0620 · IGCSE · Formulae

Formulae — practice question

A compound is composed of $34.5\%$ calcium, $24.1\%$ silicon and $41.4\%$ oxygen by mass. What is the empirical formula of this compound?

  • A$\text{Ca}_2\text{SiO}_3$
  • B$\text{CaSiO}_3$
  • C$\text{CaSi}_2\text{O}_3$
  • D$\text{CaSiO}_6$

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