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Question 63

Which statements correctly describe the formula and particle ratio of sodium chloride? Select all that apply.

  1. Its formula is NaCl2.
  2. Its formula is NaCl.Correct answer
  3. NaCl names a molecule with two chloride atoms.
  4. Its sodium-to-chloride ion ratio is 1:1.Correct answer

Explanation

NaCl pairs one sodium ion with one chloride ion in each formula unit, so both the formula and the one-to-one ratio are valid descriptions. Calling it a molecule is misleading for this ionic solid, and NaCl2 would give twice as many chloride ions as the established ratio.

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Question 63: Which statements correctly describe the formula and… · The Periodic Table and Elements · Questena