In a solution where salt particles are dissolved in water, the movement of salt particles is primarily described by the process of diffusion. Diffusion is the movement of particles from an area of higher concentration to an area of lower concentration.
If we assume that there is a concentration gradient (i.e., a difference in concentration of salt between two areas), salt particles will move from the area of higher concentration (where there are more salt particles) to the area of lower concentration.
Therefore, if we don't have more specific information about the arrangement or gradient, the most likely change in the arrangement of salt particles would be:
Salt particles will move toward the right through diffusion.
(Assuming the right side of the image has a lower concentration of salt particles). If there's no specific spatial arrangement given, just remember that diffusion involves movement from high to low concentration.
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