The solution commonly known as lime water is?

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Multiple Choice

The solution commonly known as lime water is?

Explanation:
Limewater is an aqueous solution of calcium hydroxide. It’s made by dissolving calcium oxide in water to form calcium hydroxide, Ca(OH)2, in solution. This alkaline solution is what people mean by limewater. It’s famous for turning milky when carbon dioxide is bubbled through it, because CO2 reacts with Ca(OH)2 to make insoluble calcium carbonate. The other options are different substances—sodium hydroxide in water, ammonium chloride in water, or a solution of carbon dioxide in water—so they don’t match what limewater is.

Limewater is an aqueous solution of calcium hydroxide. It’s made by dissolving calcium oxide in water to form calcium hydroxide, Ca(OH)2, in solution. This alkaline solution is what people mean by limewater. It’s famous for turning milky when carbon dioxide is bubbled through it, because CO2 reacts with Ca(OH)2 to make insoluble calcium carbonate. The other options are different substances—sodium hydroxide in water, ammonium chloride in water, or a solution of carbon dioxide in water—so they don’t match what limewater is.

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