There are different kinds of Chemical reaction. What will occur is that a lot of water molecules will move from x to y decreasing the concentration gradient of sucrose.
Osmosis is known to be a chemical situation, where solvent molecules often water move or diffuse via a semipermeable membranes.
This is usually done in regions of low solute concentration to regions of high solute concentration until both sides are equal in concentration of solutes. The solution is said to be water moving from a hypotonic solution to the hypertonic solution.
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