Notice that the predictions in Figure correspond to real molecules despite the training data corresponding to alchemical molecules. Note that molecules such as argon and methane (Figures and, respectively) can be considered interpolations between alchemical molecules used in the training. The new MLP, also retains the same limitations of the original MLP when predicting adsorption for real molecules that fall below and above the alchemical parameter "range" considered for training. While hydrogen predictions remain accurate (Figure ), predictions for larger molecules like propane prove to be less successful (Figure ). These results reemphasize the need to expand the training data to include, for instance, larger alchemical adsorbates, but we show that could be achieve efficiently using AL. Additional results and predictions can be found in the SI.