Producing pure demineralized (de-ionized) water requires synthetic organic resins. What is the corre — Hydrogen Chemistry Question

💡 Solution & Explanation

Complete demineralization involves passing water first through a cation exchange resin (trading $Ca^{2+}, Mg^{2+}, Na^+$ for $H^+$, making the water acidic), and subsequently through an anion exchange resin (trading $Cl^-, SO_4^{2-}$ for $OH^-$). The released $H^+$ and $OH^-$ combine to form pure $H_2O$.