Hand ignites urotropin mixed with calcium gluconate, selective focus. Concept of chemistry lesson, chemical experiment

---

Size: 3100px × 2041px
Photo credit: © Valkantina / Alamy / Afripics
License: Royalty Free
Model Released: No

Keywords: ash, burn, calcium, chemical, chemist, chemistry, close, decomposition, discovery, education, ejection, element, energy, entertaining, equipment, experiment, experimental, fiery, fire, flame, focus, formation, fun, glow, gluconate, grow, growth, hand, heat, high, home, homeschooling, ignite, joyful, laboratory, lesson, macro, mixed, motion, person, pharaoh, process, reaction, reagent, research, science, scientific, selective, snake, substance, temperature, urotropin