Ключевые слова: atom, atomic, chemical, chemistry, corrosive, drawing, eggs, flat, formula, gas, h2s, hydride, hydrogen, hydrogen sulfide, hydrosulfuric, hydrosulfuric acid, hydrothionic, icon, illustration, molecular, molecule, poisonous, sewer, signaling molecule, smell, stink, structural, structure, sulfhydric, sulfide, sulfur, sulphide, swamp, toxic, volcano,