Neutralisation reaction.
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The reaction between calcium hydroxide and carbon dioxide is a neutralization reaction, resulting in the formation of calcium carbonate and water. This reaction is important in processes like water treatment and carbon capture.
When carbon dioxide is bubbled through calcium hydroxide, calcium carbonate is formed as a white precipitate. This reaction is used to test for the presence of carbon dioxide gas.
When limewater (calcium hydroxide solution) reacts with carbon dioxide, it forms a white precipitate of calcium carbonate. This is a chemical reaction that is often used to test for the presence of carbon dioxide gas.
Solid calcium hydroxide is used to test for carbon dioxide because it reacts with carbon dioxide to form calcium carbonate. This reaction causes the solution containing calcium hydroxide to turn cloudy, allowing us to confirm the presence of carbon dioxide.
Lime water is not a chemical reaction by itself. It is a solution of calcium hydroxide in water, where the calcium hydroxide has dissolved to form calcium ions and hydroxide ions. When lime water reacts with carbon dioxide in the air, it forms calcium carbonate, which is a chemical reaction.
When sodium hydroxide reacts with carbon dioxide, it forms sodium carbonate and water. This reaction is a type of neutralization reaction.