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Atoms and reactions

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Question 33

0.850 g of an element X X\,X is reacted with oxygen to form 1.215 g of the oxide X2O3X_2O_3X2​O3​.

What is the element XXX?

Sc

Cr

Fe

Co

Atoms and reactions Questions

  1. A Level
  2. /Chemistry
  3. /Atoms and reactions