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When considering which substance is more likely to dissolve into a solution, we need to look at the nature of the substances involved.
1. If substance A is a polar molecule and substance B is a nonpolar molecule, substance A would be more likely to dissolve into a solution. This is because in a solution, like dissolves like. Polar molecules tend to dissolve in polar solvents, and nonpolar molecules tend to dissolve in nonpolar solvents.
2. On the other hand, if both substance A and substance B are polar molecules, then the likelihood of dissolution into a solution would depend on other factors such as the specific nature of the polar groups in the molecules and the solvent being used.
So, in general, when comparing a polar molecule to a nonpolar molecule, the polar molecule is more likely to dissolve into a solution.