Skip to content
MathsGenie logo
Open app

Course home

  1. A Level
  3. Chemistry OCR A
  5. Question bank

Amount of substance

EasyMediumHard
1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950515253545556575859606162636465666768697071727374757677787980
Question 26

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

Amount of substance Questions

  1. A Level
  2. /Chemistry
  3. /Amount of substance