In general, it's tricky to predict for any random reaction what medium it might need. Water is a really great solvent whenever you want to have ions around. Double replacement reactions always occur in water, with the reactants in the aqueous state. Luckily, there aren't that many strong acids and bases, and you can learn morem about this from this video: Īnything that is soluble in water and dissolved (separated into individual cations and anions) is in the aqueous state. It is helpful to have the strong acids and bases memorized, since they have special reactivity. The cation (or positively charged ion) of the salt comes from the base, and the anion (or negatively charged ion) comes from the acid. If you have tried this reaction at home, you probably remember a lot of fizzing because the neutralization reaction is accompanied by a gas-producing reaction, where the carbonic acid decomposes into carbon dioxide gas-bubbles!-and water.Ī salt is generally any ionic compound, though I have also seen it defined as an ionic compound that is formed when you react an acid and a base. A B − C D − → A D − C B − \greenD NaCH 3 COO start text, N, a, C, H, end text, start subscript, 3, end subscript, start text, C, O, O, end text.
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