1. Institute of Chemistry Education, Justus-Liebig-University Giessen, Giessen 35392, Germany
2. Chemistry Education, Leibniz Institute for Science and Mathematics Education at the University of Kiel, Kiel 24118, United States
3. Department for Chemistry Education, University of Duisburg-Essen, Essen 45127, Germany
4. Faculty of Chemistry, Chemistry Education, University of Bielefeld, Bielefeld 33615, Germany
5. Faculty of Chemistry (Organic Chemistry) and CENIDE, University of Duisburg-Essen, Essen 45127, Germany
6. Institute of Organic Chemistry, Justus-Liebig-University Giessen, Giessen 35392, Germany
7. Chemistry Education, Friedrich-Alexander-University Erlangen-Nuremberg, Nuremberg 90474, Germany
8. Institute of Chemistry, University of Potsdam, Potsdam 14476, Germany
9. Ångström Laboratory, Department of Chemistry, Uppsala University, Uppsala 75120, Sweden
10. Kekulé-Institute of Organic Chemistry and Biochemistry, University of Bonn, Bonn 53121, Germany
11. Department of Chemistry Education, Eberhard Karls University Tübingen, Tübingen 72076, Germany