Which product will form when sulphur is dissolved in water?
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sulfurous acid
The sulfur reacts with oxygen in the flask to form sulfur dioxide gas, which then dissolves in the water, forming sulfurous acid. The solution turns to a yellow color, indicating the acid formation. As more gas dissolves in solution, the solution becomes more acidic.
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Sulphur dioxide dissolves in water to form an acid called sulphurous acid, SO2. Sodium reacts vigorously with cold water forming sodium hydroxide and hydrogen gas. This reaction is highly exothermic. When dilute sulphuric acid is poured on a copper plate, no reaction takes place.
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