Ключевые слова: accident, acid, alkali, bass, bottle, broken, burn, care, chemical, chemistry, company, corrosive, damage, danger, dangerous, death, destroy, environment, factory, flammable, hazard, industry, infection, lab, laboratory, leak, liquid, material, object, poison, product, property, reaction, risk, safety, science, sign, skin, spill, sterile, stock, substance, sulfuric, sulfuric acid, symbol, toxic, warning, waste, water,