User:Physikerwelt/mhchem

• ${\ce {CO2 + C -> 2 CO}}$
• ${\ce {Hg^2+ ->[I-] HgI2 ->[I-] [Hg^{II}I4]^2}}$
• ${\ce {H2O}}$
• ${\ce {Fe^{II}Fe^{III}2O4}}$
• ${\ce {NaOH(aq,\infty )}}$

this will be rendered in block mode

$${\ce {NaOH(aq,\infty )}}$$

this will be rendered in block mode ${\ce {NaOH(aq,\infty )}}$