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Why does anhydrous calcium chloride turn wet on exposure to air?
Wiki User
∙ 11y ago
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.)
Wiki User
∙ 11y ago
Anhydrous calcium chloride is hygroscopic, meaning it has a strong affinity for water. When exposed to air, it attracts and absorbs moisture from the surrounding environment, forming a hydrate compound. This makes it appear wet, even though it was originally a dry substance.
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What colour does calcium chloride turn into when burnt?
Calcium chloride does not change color when burned. Instead, it releases heat and emits a white smoke due to the decomposition of the compound.
Does phenol red mixed with calcium chloride and baking soda turn out to be a exothermic or endothermic?
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.
What happens when silver chloride is left in sunlight for sometime?
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.
How will Calcium chloride react with phenol red and baking soda?
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.
How does hydrated potassium alum visually compare to the anhydrous form?
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.
If water evaporates then cobalt chloride near or above the water will turn what color?
The anhydrous cobalt chloride is blue.
How could you tell if an unkown substance is sodium chloride or calcium carbonate?
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.
Will damp cobalt chloride turn back blue once dried?
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.
What colour does calcium chloride turn into when burnt?
Calcium chloride does not change color when burned. Instead, it releases heat and emits a white smoke due to the decomposition of the compound.
What color will a cobalt chloride paper turn into when there is water vapor?
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.
What happens when calcium chloride sodium bicarbonate and phenol red solution are mixed together?
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.
Does salt pepper sugar calcium chloride green tea and milk mixed together turn purple?
Who knows? Why don't you go find out!
Does phenol red mixed with calcium chloride and baking soda turn out to be a exothermic or endothermic?
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.
How do you separate ammonium chloride from salt?
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.
How do you turn magnesium chloride into a compound?
Magnesium chloride is already a compound.
What happens when silver chloride is left in sunlight for sometime?
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.
How will Calcium chloride react with phenol red and baking soda?
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.
