The loss of molecules of water of crystallization to the atmosphere by some crystalline salts is known as

Assessment: WAEC SSCE - Chemistry - 1997 (Objective) Subject: Chemistry

Question 1 Report

The loss of molecules of water of crystallization to the atmosphere by some crystalline salts is known as
Answer Details
Efflorescence is the loss of water of crystallization to the atmosphere by some crystalline salts. This occurs when the salt is exposed to dry air, causing the water molecules to evaporate and leaving the salt in a dry and powdery form. The process is the opposite of hygroscopy, which is the ability of a substance to absorb moisture from the atmosphere. The word "efflorescence" comes from the Latin word "efflorescere," which means "to flower out."
Read lesson note on Solubility Of Substances (Ghana Only) (WAEC)
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