![]() ![]() sodium chromate is made yellow by the chromate ion.Salts exist in many different colors, which arise either from their constituent anions, cations or solvates. Since light reflects from the grain boundaries (boundaries between crystallites), larger crystals tend to be transparent, while the polycrystalline aggregates look like opaque powders or masses. In many cases, the apparent opacity or transparency are only related to the difference in size of the individual monocrystals. Solid salts tend to be transparent, as illustrated by sodium chloride. Properties īMIM +PF 6 −, an ionic liquid Color Examples of zwitterions are amino acids, many metabolites, peptides, and proteins. Zwitterions contain an anionic and a cationic centre in the same molecule, but are not considered salts. Neutral salts are those salts that are neither acidic nor alkaline. Salts that produce hydroxide ions when dissolved in water are called alkali salts and salts that produce hydrogen ions when dissolved in water are called acid salts. Salts can be classified in a variety of ways. Each ion can be either monatomic, such as fluoride (F −), or polyatomic, such as sulfate ( SO 2− The component ions in a salt compound can be either inorganic, such as chloride (Cl −), or organic, such as acetate ( CH A common example is table salt, with positively charged sodium ions and negatively charged chloride ions. ![]() In chemistry, a salt is a chemical compound consisting of an ionic assembly of positively charged cations and negatively charged anions, which results in a compound with no net electric charge. For other uses, see Salt (disambiguation). ![]()
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