When Sodium and Chlorine React to Form Sodium Chloride NaCl)

question 23

Multiple Choice

When sodium and chlorine react to form sodium chloride NaCl) , 411 kJ per mole of NaCl is given off. To break up 1 mole of NaCl into sodium and chlorine requires

• A) less than 411 kJ.
• B) 411 kJ.
• C) more than 411 kJ.
• D) any of the above, depending on the circumstances.

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