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What is the purpose of limewater in an experiment?

Limewater is used in experiments to detect the presence of carbon dioxide gas. When carbon dioxide is passed through limewater, it causes a chemical reaction that results in the limewater turning from clear to milky white, indicating the presence of carbon dioxide. This property makes limewater a valuable tool for testing the presence of carbon dioxide in various experiments and processes.


What happens to the limewater if the gas is present?

If a gas is present in limewater, such as carbon dioxide, it will react with the limewater to form a white precipitate of calcium carbonate. This reaction causes the limewater to become cloudy or milky in appearance. It is a common test for the presence of carbon dioxide gas.


How do you test the chemical of carbon dioxide and what are the result?

Bubbling an unknown reactant gas of a chemical reaction through a bottle containing lime water causes the clear liquid to become cloudy as calcium carbonate is precipitated out. This is he classic test for the presence of Carbon Dioxide


What will happen when you blow air through a test tube of limewater?

When you blow air through a test tube of limewater (a saturated solution of calcium hydroxide), the carbon dioxide (CO2) in your breath reacts with the calcium hydroxide to form calcium carbonate, which is insoluble in water. This reaction causes the limewater to turn milky or cloudy, indicating the presence of carbon dioxide. This phenomenon is often used as a simple test for CO2. Over time, the cloudiness may settle as the calcium carbonate precipitates out of the solution.


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.


How do carbon dioxide and limewater react when mixed together?

Carbon dioxide (CO2 gas ) react with lime water (Ca(OH)2) in a chemical reaction to produce limestone or marble or chalk(CaCO3) and water(H2O). EQUATION CO2+Ca(OH)2=CaCO3+H2O. Calcium Oxide (CaO) in the calcium hydroxide (Ca(OH)2) compoud breaks to react with the carbon dioxide (CO2) to produce calcium carbonate (CaCO3) and water (H2O) is produced from the remaining atoms. EQUATION CaO+CO2 = CaCO3 BY: Boamah kofi Hannah School Complex


How do you differ carbon monoxide and carbon dioxide?

The chemical formula for carbon monoxide is CO while that for carbon dioxide is CO2. Both are colourless and odourless gases, but CO2 will form a white precipitate with limewater. CO is toxic to humans; CO2 causes the enhanced greenhouse effect that leads to global warming.


What cause limewater turns chalky?

When you breathe out, Carbon Dioxide (CO2) is released. This reacts with the limewater to form a precipitate of calcium carbonate which appears as a white semitransparent substance in the solution.Because of this phenomenon, limewater is offen used in chemistry as an indicator of Carbon Dioxide. The equation (found on Wikipedia) is here below:Ca(OH)2 (aq) + CO2 (g) => CaCO3 (s) + H2O (l)Read more: Why_does_a_clear_limewater_turned_chalky_when_you_blow


What causes carbon dioxide?

fossil fuels and breathing causes carbon dioxide :)


Why will limewater turn colourless when after bubbling through it for too long?

Limewater (calcium hydroxide solution) turns colorless after bubbling through it for too long because it reacts with carbon dioxide in the air to form calcium carbonate, which is insoluble and precipitates out of the solution. This process reduces the concentration of calcium hydroxide in the limewater and causes it to lose its milky appearance.


How would you test a gas to see if it is carbon dioxide?

Carbon dioxide gas is transparent and under normal conditions you do not see it. However, it does form visible bubbles in carbonated beverages. If you put frozen carbon dioxide ("dry ice") in water, the carbon dioxide that bubbles out of the water will look like fog, because it is very cold and causes moisture in the air to condense. But the fog will dissipate and the carbon dioxide will again become invisible.


What is the name of the gas that causes a burning splint to go uot?

The gas that causes a burning splint to go out is carbon dioxide. Its presence is often used to test for the presence of this particular gas.