That is because it is hygroscopic in nature and it absorbs moisture from air. If exposed to open air, it tends to become liquid. That is why, it is often called as deliquescent substance (deliquescent substances are substances which absorbs an excessive amount of water from its surroundings/ atmosphere that it forms a liquid.)
Calcium chloride does not change color when burned. Instead, it releases heat and emits a white smoke due to the decomposition of the compound.
The reaction between phenol red, calcium chloride, and baking soda is endothermic. The mixture will absorb heat from its surroundings as it undergoes the reaction, causing the temperature of the mixture to decrease.
When silver chloride is left in sunlight for some time, it will undergo a photochemical reaction that causes it to darken and eventually turn gray or black. This is due to the decomposition of silver chloride into elemental silver and chlorine gas upon exposure to light.
When Calcium chloride reacts with phenol red and baking soda, it will generate carbon dioxide gas. This reaction causes the phenol red to change color – it will turn from red to yellow as the pH decreases due to the formation of carbonic acid.
Hydrated potassium alum appears as colorless or white crystals with a smooth or glassy texture, while the anhydrous form typically appears as a white powder. Hydrated potassium alum can also exhibit water droplets on its surface due to its water content, whereas the anhydrous form does not show this characteristic.
The anhydrous cobalt chloride is blue.
Add dilute hydrochloric acid to both. There will be no reaction with the sodium chloride but the calcium chloride will effervesce and give off carbon dioxide which will turn lime-water milky.
Solid Cobalt chloride crystals are pink when hydrated with water. If you heat the crystal, the water of crystallisation in the crystals will evaporate, leaving you with solid anhydrous cobalt chloride crystals which are blue in colour.
Calcium chloride does not change color when burned. Instead, it releases heat and emits a white smoke due to the decomposition of the compound.
A cobalt chloride paper will turn pink when exposed to water vapor. This color change is due to the cobalt chloride reacting with the water vapor to form pink cobalt chloride hexahydrate.
Calcium Chloride and Sodium Bicarbonate turn pink, then turn yellow due to carbonic acid that is created. the mixture turns hot and gas is, about 10 seconds later the mixture stops producing gas and turns cold.
Who knows? Why don't you go find out!
The reaction between phenol red, calcium chloride, and baking soda is endothermic. The mixture will absorb heat from its surroundings as it undergoes the reaction, causing the temperature of the mixture to decrease.
Magnesium chloride is already a compound.
You can separate ammonium chloride from salt by sublimation. Ammonium chloride sublimes at a lower temperature compared to salt, so when heat is applied, ammonium chloride will turn directly into a gas and can be collected as a solid again by cooling it down. Salt will remain behind as a residue.
When silver chloride is left in sunlight for some time, it will undergo a photochemical reaction that causes it to darken and eventually turn gray or black. This is due to the decomposition of silver chloride into elemental silver and chlorine gas upon exposure to light.
When Calcium chloride reacts with phenol red and baking soda, it will generate carbon dioxide gas. This reaction causes the phenol red to change color – it will turn from red to yellow as the pH decreases due to the formation of carbonic acid.