Answer:
[tex]Zn(CN)_2[/tex]
Explanation:
According to the law of definite proportions, particles in a compound combine by a defined stoichiometric ratio. This ratio is also calculated in terms of moles.
In order to find the ratio between the particles in a compound, we need to find the molar ratio of each species.
Notice that the ratio between the number of moles of zinc to the number of moles of nitrogen is:
[tex]\frac{n_{Zn}}{n_N}} = \frac{9.7 mol}{4.9 mol} = \frac{1}{2}[/tex]
This means if we are given 1 zinc ion, we expect to have a total of 2 nitrogen atoms. Therefore, x = 2.