An "alkali" is a substance that can neutralize acids and typically has a pH greater than 7. Alkalis are usually water-soluble bases that release hydroxide ions (OH⁻) in solution. Common examples include sodium hydroxide (NaOH) and potassium hydroxide (KOH). In the broader context of chemistry, alkalis are often derived from the alkali metals (like sodium and potassium) and are characterized by their ability to react with acids to form salts and water.
Alkali defination
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