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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.
Hope this helps
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∙ 12y ago
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What is limewater element or compound?
Limewater is a solution made of Calcium Hydroxide and water. Calcium Hydroxide is found in things like oyster shells and bird eggs. There are many uses including food preparation, creating paint and topical medicines.
How would you test a sample of gas to see if it contained carbon dioxide?
take the gas atach it to the flask with limewater....if carbon dioxide is present then it will turn cloudy...thats the answer for test of carbon dioxide i think the answer your looking for is bromthymol blue
When you make lime water why do you filter the calcium hydroxide?
The limewater is filtered so that the undissolved particles of calcium hydroxide do not make the limewater solution cloudy even before it is used to test for carbon dioxide gas. By filtering it, the limewater solution is made clear and colorless, which makes it easier to notice it becoming cloudier when carbon dioxide gas is bubbled through it.
Carbon dioxide and lime water?
CaCO3 (s) + H2O(l) CaCO3 is a white solid that appears cloudy in solution Limewater is also used in the chemical test for carbon dioxide. The chemical test is if carbon dioxide is mixed with limewater it then clouds. If this happens then the gas will be carbon dioxide.
What are the tests of hydrogen and carbon dioxide?
Carbon and hydrogen are detected qualitatively by heating a mixture of the given substance with dry copper (II) oxide in a glass tube. The organic substance is oxidize and carbon dioxide and water are formed. The presence of carbon dioxide is indicated by the formation of a white precipitate of calcium carbonate, when the gaseous products are passed through a solution of lime water. The presence of hydrogen is indicated by the formation of droplets of water in the tube.
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 are some characteristics test of carbon dioxide?
- infrared spectrometry - the test with calcium hydroxide (calcium carbonate, white and insoluble in water, is formed)
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.
What is a positive test for carbon dioxide?
Absorbed carbon dioxide in calcium hydroxide produce calcium carbonate, a white precipitate.
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.
Can you test carbon dioxide?
Bubble the gas through limewater (saturated calcium hydroxide solution). Carbon dioxide reacts to form calcium carbonate which turns the liquid cloudy. Ca(OH)2 (aq) + CO2 (g) → CaCO3 (s) + H2O (l)
How can you test carbon dioxide?
Carbon Dioxide turns lime water milky/cloudy.
How do you do the test for carbon dioxide?
To test the presence of carbon dioxide bubble the gas into the lime water. Carbon dioxide reacts to form calcium carbonate which turns cloudy.
What is limewater element or compound?
Limewater is a solution made of Calcium Hydroxide and water. Calcium Hydroxide is found in things like oyster shells and bird eggs. There are many uses including food preparation, creating paint and topical medicines.
How do you test for carbon dioxide on animals breath?
Bubble the breath through limewater (saturated calcium hydroxide solution). Carbon dioxide reacts to form calcium carbonate which turns the liquid cloudy. Ca(OH)2 (aq) + CO2 (g) → CaCO3 (s) + H2O (l)
