# What type of reaction is H_2+Cl -> HCl?

Nov 23, 2016

An unrealistic one!

#### Explanation:

Chemical equations conserve mass and charge. Given that the proferred equation does not balance mass (why not?), it cannot be accepted as a model that represents chemical reality.

${H}_{2} \left(g\right) + C {l}_{2} \left(g\right) \rightarrow 2 H C l \left(g\right)$

Is this reaction acceptable?

$\frac{1}{2} {H}_{2} \left(g\right) + \frac{1}{2} C {l}_{2} \left(g\right) \rightarrow H C l \left(g\right)$