Формулы

$\frac{1}{\sqrt{2\pi}}\exp\left(\frac{x^2}{2}\right)$ <chem>{2KMnO_4 + 16HCl = 5Cl_2 + 2MnCl_2 +8H_2O+2KCl}</chem> $\mathrm{2K\,MnO_4 + 16H\,Cl = 5Cl_2 + 2Mn\,Cl_2 +8H_2O+2K\,Cl}$