Answer:
The coordinates in the given chemical reaction are 4,3,6 and 1 respectively.
Step-by-step explanation:
The balanced chemical reaction has equal number of atoms in both reactant side as well as product side.
The given chemical reaction is as follows.

The balanced chemical reaction is as follows

Reaction side Product side
Nitrogen atoms =16 Nitrogen atoms =16
Hydrogen atoms = 48 Hydrogen atoms = 48
Chromium atoms =9 Chromium atoms =9
Oxygen atoms = 24 Oxygen atoms = 24
Therefore, the coordinates of the given reaction are 4,3,6 and 1 respectively.