CBSE BOARD X, asked by rohitreddy2, 1 year ago

how to identify that in a chrmical equation where has to be whole twice like example Fe(OH)2 ?

Answers

Answered by Pranjal123456
1
On the basis of valency.
If any element has 2+ or 2- valency, then ultimately the other element will have 2 atoms.
Now, if there are reactants like hydroxyl ion or Ammonia ion or Permanaganate, etc. you are going to put whole twice.
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