![image](https://tex.z-dn.net/?f=BaCl_%7B2%7D-%3EBa%5E%7B2%2B%7D%2B2Cl%5E%7B-%7D)
Ba^{2+}+2Cl^{-}" alt="BaCl_{2}->Ba^{2+}+2Cl^{-}" align="absmiddle" class="latex-formula">
![image](https://tex.z-dn.net/?f=Na_%7B2%7DSO_%7B4%7D-%3E2Na%5E%7B%2B%7D%2BSO_%7B4%7D%5E%7B2-%7D)
2Na^{+}+SO_{4}^{2-}" alt="Na_{2}SO_{4}->2Na^{+}+SO_{4}^{2-}" align="absmiddle" class="latex-formula">
![image](https://tex.z-dn.net/?f=KOH-%3EK%5E%7B%2B%7D%2BOH%5E%7B-%7D)
K^{+}+OH^{-}" alt="KOH->K^{+}+OH^{-}" align="absmiddle" class="latex-formula">