Viết pt điện ly, ảnh viết đúng chx ạ? chx thì sửa giúp emm

Phương trình điện li 

`*`$\rm H_3PO_4 \rightleftharpoons H^+ +H_2PO_4^+$ 

$\rm H_2PO_4^+ \rightleftharpoons H^+ +HPO_4^{2+}$

$\rm HPO_4^{2+} \rightleftharpoons H^+ +PO_4^{3+}$  

$\rm HNO_2 \rightleftharpoons H^+ +NO_2^-$ 

$\rm CH_3COOH \rightleftharpoons CH_3COO^- +H^+$ 

$\rm HCOOH \rightleftharpoons H^+ +COOH^-$ 

$\rm H_2S \rightleftharpoons HS^-+ H^+$ 

`*`$\rm H_2SO_3 \rightleftharpoons H^+ +HSO_3^-$ 

$\rm HSO_3^- \rightleftharpoons H^+ +SO_3^{2-}$ 

`*`$\rm H_2CO_3 \rightleftharpoons H^+ +HCO_3^-$ 

$\rm HCO_3^- \rightleftharpoons H^+ +CO_3^{2-}$ 

$\rm HClO \rightleftharpoons H^+ +ClO^-$ 

$\rm HBrO \rightleftharpoons H^+ +BrO^-$ 

$\rm HCN \rightleftharpoons H^+ +CN^-$ 

$\rm HF \rightleftharpoons H^+ +F^-$ 

`*`$\rm H_3PO_3 \rightleftharpoons H^+ +H_2PO_3^-$ 

$\rm H_2PO_3^- \rightleftharpoons H^+ +HPO_3^{2-}$ 

$\rm HPO_3^{2-} \rightleftharpoons H^+ +PO_3^{3-}$