An elektrolit is a substance that produces ions when dissolved in water or melted, allowing it to conduct electricity. Common examples include salts, acids, and bases. When these substances dissociate in solution, they break into positively and negatively charged ions, which are essential for various chemical reactions and processes. In biological systems, elektrolits play a crucial role in maintaining fluid balance and transmitting nerve impulses. Key elektrolits in the human body include sodium, potassium, and calcium. These ions help regulate hydration, muscle function, and overall cellular activity, making them vital for health and well-being.