A. Increasing the molecular mass of the solute, Because that would Increase the solubility of solid solute, but wouldn't increase the gaseous solute.
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I think the answers to this is d
When it gains an electrons is negatively charged so in this case I think it will be. -ion
Im more than sure that D is the only true answer. Because the root “homo” means the same, so it would only be one type (: lmk if I’m right!