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I have just answered this question as part of homework myself, limewater is a common name for Ca(OH)2 (calcium hydroxide) and when limewater and carbon dioxide meet they instantly react in a visible way. The limewater turns cloudy, sort of like when milk and water meet.

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Why would solid calcium hydroxide be used to test for carbon dioxide?

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.


Explain why calcium hydroxide can be used in this way?

Calcium hydroxide is used to test for carbon dioxide because the product of the reaction, calcium carbonate, is insoluble, and easily visible.


What does CO2 and lime water make?

When carbon dioxide reacts with lime water (calcium hydroxide solution), it forms a white precipitate of calcium carbonate. This reaction is commonly used as a test for the presence of carbon dioxide gas.


How could the solid calcium hydroxide be used to test for carbon dioxide?

Calcium ydroxide is just another word for "Limewater". Limewater turns milky in the presence of Carbon Dioxide.


When carbon iv oxide is bubbled through calcium hydroxide what is the white precipitate formed?

The precipitate formed is Calcium Carbonate (CaCO3).


What is a positive test for carbon dioxide?

A positive test for carbon dioxide is the limewater test. When carbon dioxide gas is bubbled through limewater, it turns milky or cloudy due to the formation of a white precipitate of calcium carbonate.


What is produced when limewater and carbon dioxide reacts?

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.


What happens when carbon dioxide is treated with limewater?

When carbon dioxide is treated with limewater (calcium hydroxide solution), a white precipitate of calcium carbonate forms. This is a chemical reaction that is commonly used to test for the presence of carbon dioxide gas.


How do you text for carbon dioxide?

To test for carbon dioxide, you can bubble the gas through limewater (calcium hydroxide solution). If carbon dioxide is present, it will cause the limewater to turn milky or cloudy due to the formation of calcium carbonate. Another method is using a pH indicator like bromothymol blue, which will change color in the presence of carbon dioxide.


How do you test presence of carbon dioxide?

Bubble the gas through limewater (calcium hydroxide), and then a white precipitate is formed, which is actually calcium carbonate.


How would you test carbon dioxide to show that it was hydrogen?

Carbon dioxide form a milky suspension of calcium carbonate in calcium hydroxide; hydrogen doesn't react. But hydrogen react with oxygen when a flame exist.


Why do we test the gas given off with limewater?

Limewater (calcium hydroxide) react with carbon dioxide and form insoluble, white precipitate of calcium carbonate.