Water is the best solvent for dissolving urea due to its polar nature, which facilitates the formation of hydrogen bonds with urea molecules. Urea is highly soluble in water, with solubility increasing with temperature. Other polar solvents, such as methanol or ethanol, can also dissolve urea but are not as effective as water.
Calcium hydroxide (Ca(OH)2) is sparingly soluble in water, meaning only a small amount will dissolve. It forms a saturated solution that contains some dissolved Ca(OH)2 and some undissolved solid.
To determine the amount of water needed to prepare a 0.500 m (molal) solution of Ca(NO₃)₂, first, calculate the number of moles of Ca(NO₃)₂ in 75.5 g. The molar mass of Ca(NO₃)₂ is approximately 164.10 g/mol, yielding about 0.460 moles. For a 0.500 m solution, you need 0.460 moles of solute per kg of solvent, which means you should add 0.460 kg of water (or 460 g) to achieve the desired molality.
When CaO is put into water it does not dissolve. It reacts with the water to form Ca(OH)2 and releases heat (this is an exothermic reaction) The heat of reaction boils the water.
Ca stands for Calcium.
Calcium Sulfide
Acetone is the best solvent for removing CA glue.
The best method for safely removing CA glue using a solvent is to use acetone. Acetone is a strong solvent that can effectively dissolve CA glue without damaging the surface it is applied to. Make sure to use acetone in a well-ventilated area and wear gloves to protect your skin.
It is not recommended to mix calcium chloride and urea together as they can form a complex chemical reaction that may release toxic gases. Additionally, mixing these two substances may reduce the effectiveness of urea as a fertilizer. It is best to apply calcium chloride and urea separately according to their intended use.
No, calcium (Ca) metal will not dissolve in water on its own. However, when calcium reacts with water, it forms calcium hydroxide and hydrogen gas.
No, and I even can't think of any solvent for carbon black, graphite or diamond at all. But who knows, maybe the next question might be: What is a possible solvent for any allotrope of carbon?
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Urea is added when precipitating calcium oxalate to increase the solubility of the calcium oxalate crystals. This helps to prevent the formation of large, dense crystals that can be difficult to filter and wash. By adding urea, smaller and more easily filterable crystals are formed.
Chlorides salts of Na, Mg, Ca.
In accounting, CA
Ca is the chemical symbol for calcium, an element. It is an alkali metal with atomic number 20. ------------------------------------------- The above is true, however if the element Ca is present in a solution then it will be present as part of an Ionic compound in solution, note a solution is not a mixture, element or compound, it is a SOLUTION. An insoluble compound of Ca could be present in liquid, in which case you would have a suspension. A suspension is a mixture.
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