Chemistry 0620 · IGCSE · Relative masses of atoms and molecules

Relative masses of atoms and molecules — practice question

A 16.0\,\text{g} sample of the metal oxide, \text{MO}, is reduced to give 12.8\,\text{g} of the metal, \text{M}. What is the relative atomic mass, $A_r$, of M?

  • A32
  • B64
  • C80
  • D128

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