Ключевые слова: 3d, alkane, alkanes, aromatic, atom, ball, carbon, chemical, chemistry, compound, cycle, education, element, flammable, formula, group, homologous, hydrocarbon, hydrogen, illustration, isolated, liquid, model, molecular, molecule, odor, organic, petrol, ring, scale, schematic, science, series, smell, solvent, sphere, structural, structure, the atomic, toxic,