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The carbon dioxide forms a precipitate with the calcium hydroxide. (Lime water is just a solution of calcium hydroxide) This precipiate is what makes it look chalky
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∙ 16y ago
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What does light energy do to water and carbon dioxide?
Light has little or no effect on water and carbon dioxide, unless a catalyst such as chlorophyll is present. In that case, the light energy is absorbed and the water and carbon dioxide are converted to glucose and water. This is photosynthesis.
What substance used to detect the presence of carbon dioxide?
Test for Carbon Dioxide: Bubble unknown gas in lime water. Limewater should go milky if Carbon dioxide is present. Test for water: Add anhydrous copper sulphate crystals (white in colour) to unknown solution. If solution goes a brilliant light blue colour, water is present as the hydrous copper sulphate crystals were formed. Did this help?
What are the raw materials required by the plants to prepare their food?
Sunlight (Trapped by the green pigment, chlorophyll present in the leaves), Water, Carbon Dioxide, Soil nutrients such as Nitrogen, Phosphorous, Potassium (collectively called NPK which is also a fertilizer).
What two things must be taken in by a plant for photosynthesis?
The two things that a plant takes in for photosynthesis are : light and carbon dioxide.
Is soda water a solution?
water is solvent and carbon dioxide is solute
What is the fizz in soda called?
Cardon Dioxide in the carbonated water that forms the base of any soda.
Function of lime water?
It is to test for the presence of carbon dioxide. If carbon dioxide is present,it will turn chalky however if carbon dioxide is absent,lime water will remain colourless.
What four things does a flower need for photosynthesis?
water carbon dioxide and sunlight
Are the fumes of Bi Carb mixed with vinegar harmful?
A mixture of sodium ethanoate, water and cardon dioxide is going to be produced. Carbon dioxide can be harmful so I'd recommend not inhaling the fumes produced
Is there naturally sulfur dioxide in water?
No sulfur dioxide is not present naturally. It pollutes the water.
When do lime water turns chalky?
yes.. ofcourse lime water turn chalky when it is shake.
Why does exhaled air turn limewater chalky faster than inhaled water?
carbon dioxide turns lime water chalky. the more carbon dioxide, the faster the limewater turns chalky. Exhaled air contains carbon dioxide waste from the bodies organs, and that's why it contains more carbon dioxide than inhaled air.
What are 4 small molecules that can move easily through the phospholipid bilayer?
i do not know all four, but i know three are: O2 (Oxygen) CO2 (Cardon Dioxide) and H2O (Water)
What happens to the lime water as carbon dioxide mixes?
It turns from a clear, colourless substance to a cloudy, whitish precipitate
What is the function of lime water used in testing for carbon dioxide gas?
It is to make sure that carbon dioxide is present or not present in the experiment.
What turns milky when carbon dioxide is present?
lime water
How would you test or carbon dioxide?
add lime water to the air if the lime water turns cloudy then carbon dioxide is present
