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Explain why sublimation is regarded as a physical change but the slaking of lime is considered as a chemical change?
- Sublimation don't change the molecule; solid iodine or sublimated iodine are iodine. - Slaking of lime transform the calcium oxide in calcium hydroxide. A chemical change occur.
What is added to quicklime to make slacked lime?
Water is added to quicklime the make slaked lime. Calcium hydroxide reacts with water to form calcium hydroxide. CaO + H2O --> Ca(OH)2
Is producing carbon dioxide gas and solid lime by heating limestone is chemical change?
Yes, producing carbon dioxide gas and solid lime by heating limestone is a chemical change. This process involves the decomposition of limestone (CaCO3) into calcium oxide (CaO) and carbon dioxide (CO2) through the application of heat, which is a chemical reaction.
What is slate lime's chemical name?
Presumably you mean slaked lime? If so it is calcium hydroxide - Ca(OH)2
What is slake lime?
Quicklime is calcium oxide - CaO and slaked lime is calcium hydroxide - Ca(OH)2. CaCO3--------------CaO + CO2 This reaction occur at high temperature; mixing calcium oxide with water, the hydroxide is obtained.
Explain why sublimation is regarded as a physical change but the slaking of lime is considered as a chemical change?
- Sublimation don't change the molecule; solid iodine or sublimated iodine are iodine. - Slaking of lime transform the calcium oxide in calcium hydroxide. A chemical change occur.
What happens when you mix water and lime?
When water is mixed with lime (calcium oxide), a chemical reaction occurs to produce calcium hydroxide and release heat. This process is known as slaking and is used to create a hydrated lime paste that is commonly used in construction and as a mortar. The resulting mixture can also be used to create lime mortar for masonry work.
How many times the volume of fat lime increases compared to volume of quick lime on slaking?
2-2.5 times.
Why is slaking of lime is necessary?
- to obtain calcium oxide - to obtain calcium hydroxide
How is slake lime made?
adding water to quick lime produces slaked lime.
What is added to quicklime to make slacked lime?
Water is added to quicklime the make slaked lime. Calcium hydroxide reacts with water to form calcium hydroxide. CaO + H2O --> Ca(OH)2
Is slaking of lime reversible?
Yes but it is not a single step reversal. You start off with Limestone (CaCO3) you heat this and drive off Carbon dioxide (CO2) making Quicklime (CaO). You then slake the Quicklime by adding water (H2O) to make Slaked Lime (Ca(OH)2). The Slaked lime will slowly turn back into limestone by reacting with the Carbon Dioxide (CO2) in the air - it is Carbonated - to make Limestone (CaCO3).
What is the chemical name and formula for Hydrated lime?
The chemical name for hydrated lime is Calcium hydroxide The chemical formula is Ca(OH)2.
Is producing carbon dioxide gas and solid lime by heating limestone is chemical change?
Yes, producing carbon dioxide gas and solid lime by heating limestone is a chemical change. This process involves the decomposition of limestone (CaCO3) into calcium oxide (CaO) and carbon dioxide (CO2) through the application of heat, which is a chemical reaction.
Is adding lime to baking soda a chemical change?
Yes, adding lime (calcium hydroxide) to baking soda (sodium bicarbonate) results in a chemical change known as a double displacement reaction. The reaction forms water, sodium hydroxide, and calcium carbonate.
What is slate lime's chemical name?
Presumably you mean slaked lime? If so it is calcium hydroxide - Ca(OH)2
What is the chemical formula of chloride of lime?
The chemical formula of chloride of lime is Ca(ClO)2.
