Water of crystallization can be removed by________________?
Correct answer: B. heating
- A. drying
- B. heating
- C. evaporation
- D. All of the above
Explanation
Water of crystallization is held in a crystal lattice and is removed by heating, which supplies enough energy for the water molecules to escape. Students may choose evaporation because water is being removed, but evaporation usually removes surface liquid rather than lattice-bound water.
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About Crystalline Solids
Crystalline solids contain particles arranged in a regular repeating lattice described by a unit cell. Their study includes coordination number, packing efficiency, density, anisotropy, cleavage, polymorphism and common crystal systems, along with ionic, molecular, covalent network and metallic crystals. Crystalline order differs from the random arrangement of amorphous solids.
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