Question

Sodium chloride is a liquid at 900 0C. How are the particles arranged and how do the particles move in sodium chloride at 900 0C? *

Answer 1

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Answer 2

The particles are arranged in the following manner:

• Sodium Chloride (NaCl) is made of Na+ ions and Cl- ions.
• At 900°C, sodium chloride exists in liquid form (molten form).
• The ions are free to move and show random movement. This is the reason why molten NaCl conducts electricity.
• There is no crystal lattice at 900°C. The ions are scattered and have no definite arrangement.
• Crystal lattices exist only in the solid state.