Ba^{2+}+2Cl^{-}" alt="BaCl_{2}->Ba^{2+}+2Cl^{-}" align="absmiddle" class="latex-formula">
2Na^{+}+SO_{4}^{2-}" alt="Na_{2}SO_{4}->2Na^{+}+SO_{4}^{2-}" align="absmiddle" class="latex-formula">
K^{+}+OH^{-}" alt="KOH->K^{+}+OH^{-}" align="absmiddle" class="latex-formula">