Question

multiple-choice question a student dissolves a spoonful of nacl in a cup of water. how many nacl particles are floating around in the water? there are billions of nacl particles in the water. none.

Explanation:

When NaCl (sodium chloride, table salt) dissolves in water, it dissociates into Na⁺ and Cl⁻ ions, but these ions are still particles dispersed in the water. A spoonful of NaCl contains a large number of NaCl formula units (which dissociate into ions), so there are billions of particles (ions from NaCl dissociation) floating around in the water. The option "None" is incorrect because dissolving NaCl in water results in the presence of its dissociated particles (ions) in the solution.

Answer:

A. There are billions of NaCl particles in the water.