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พารากราฟ 2Arrhenius's definition was widely accepted, but it was also problematic. It applied only to acids formed by dissolving something in water. In 1923, two different chemists independently formulated a new theory defining acids. These chemists were Bronsted and Lowry. Both defined acids as something capable of giving a proton to another molecule. When hydrogen chloride gas (HCI) is dissolved in water, for example, it acts like an acid. The gas gives hydrogen ions to the molecules of water to produce hydronium ions (H3O+)
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