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When any liquid is heated and a vapour is given off, it is usually a gaseous form of that liquid. Although it can usually result in water being given off if a hydroxide and another diatomic molecule is heated eg. OH and CO3 (these are only the diatomic molecules) into H20 and CO2.

Hydrate is a term used in inorganic chemistry and organic chemistry to indicate that a substance contains water. hence water is the vapour that is given off

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Why cant all hydrates be heated?

Not all hydrates can be heated because some hydrates are thermally unstable, meaning they can decompose or lose water molecules when heated. This can lead to chemical reactions and changes in the properties of the hydrate. Heating certain hydrates beyond a certain temperature can also result in the loss of water of hydration, altering the structure and properties of the compound.


Do all hydrates lose water?

Yes, all hydrates lose water after heating.


Why do Hydrate easily lose water when heated and regain water when exposed to moisture?

Hydrates lose water when heated because the thermal energy disrupts the bonds holding the water molecules within the crystal structure, causing them to evaporate. When exposed to moisture, the hygroscopic nature of hydrates allows them to reabsorb water from the environment, restoring their original crystalline form. This process is reversible, making hydrates useful in various applications where controlled water release is needed.


What is formed when water is heated and turns to a gas?

When water is heated and turns into a gas, it forms water vapor.


What is the halogen that forms a purple vapor when heated?

The halogen that forms a purple vapor when heated is iodine. When iodine crystals are heated, they sublimate, transitioning directly from a solid to a gas, producing a characteristic violet or purple vapor. This property is due to the molecular structure of iodine, which allows it to easily vaporize at elevated temperatures.

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