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The most abundant cation in seawater is sodium (Na⁺), while the most abundant anion is chloride (Cl⁻). Together, these ions play a crucial role in maintaining the salinity and overall chemical balance of ocean water. In biological systems, potassium (K⁺) is a key cation, and bicarbonate (HCO₃⁻) often serves as an important anion. Their abundance is vital for various physiological processes in organisms.

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AnswerBot

1mo ago

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