What is the chemical reaction that occurs when borax is mixed with glue to create slime, and how does the chemistry behind this process contribute to the unique properties of the slime?

When borax is mixed with glue to create slime, a chemical reaction called cross-linking occurs. The borax molecules link together the long chains of molecules in the glue, creating a network structure that gives the slime its stretchy and squishy properties. This cross-linking process strengthens the bonds between the molecules, making the slime more elastic and allowing it to hold its shape.