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