2020年9月28日 · A suggested experiment, to newly purchased $\ce{CaCl2}$ take a small amount and completely dissolve in water. Note, the heating of the solution. Take a similar amount of $\ce{CaCl2}$ and place it on a plate in a low humidity environment. In a week, try again to dissolve the salt completely.

2015年5月21日 · $\begingroup$ CaCl2 is also deliquescent. It pulls in so much water from the air that eventually you wind up with a concentrated solution of the salt. $\endgroup$ – docscience

2016年10月1日 · So far, the systematic name of $\ce{CaCl2}$ should be calcium dichloride. However, Multiplicative prefixes need not be used in binary names if there is no ambiguity about the stoichiometry of the compound (…). Therefore, …

2019年5月10日 · $\ce{CaCl2}$ solutions should be very slightly acidic if they were made from pure $\ce{CaCl2}$. This might not be the case. In industry calcium chloride is produces by reaction of calcium hydroxide with ammonium chloride, so industrial-grade calcium chloride is likely to be contaminated with calcium hydroxide.

2014年12月11日 · Today I created $1~\mathrm{M}$ aqueous solution of $\ce{CaCl2}$ and realized that the water before the mixture had a temperature of 23.4 Celsius degrees. Then I added the $\ce{CaCl2}$ and the temperature started growing until it reached 27.5 Celsius degrees. So we have an exothermic reaction.

2018年5月12日 · $\ce{MgCl2}$ and $\ce{CaCl2}$ are more soluble than $\ce{NaCl}$ because In $\ce{MgCl2}$ and $\ce{CaCl2}$ the ionic charge is +2 hence it can interact with more number of $\ce{H2O}$ molecules, as the number of interactions increases more amount of energy is liberated which is a hydration energy which is sufficient enough to overcome the lattice ...

2024年6月12日 · The Lewis Dot structure for CaCl2 shows calcium (Ca) surrounded by two chloride (Cl) atoms on each side. Calcium has 2 valence electrons, while each chloride has 7 valence electrons.

2015年4月27日 · $\begingroup$ cacl2 is a solid (amorphous mostly) and it is hard to handle with amorphous powdery solid, because they get mixed with the solution to be dried $\endgroup$ – agha rehan abbas Commented Apr 27, 2015 at 10:51

2024年6月16日 · CaCl2 is a polar compound. In CaCl2, the calcium cation has a net positive charge, while each chloride anion has a net negative charge, leading to an overall dipole moment and making the molecule ...

2013年5月17日 · The reason $\ce{CaCl2}$ is widely used as melting agent may have more to do with keeping the concrete intact. Concrete is composed of many calcium-containing species. When water flows over the concrete, the calcium can be …