Ключевые слова: alcohol, analysis, analyze, background, beaker, blue, bright, chemical, chemist, chemistry, closeup, colorful, empty, equipment, flask, fluid, glass, glassware, green, group, heat, industry, instrument, lab, laboratory, lamp, light, liquid, macro, many, preparation, reagents, red, research, science, scientific, spirit, technology, test, testtubes, toxic, transparent, tube, tubes, various, white, yellow,