Επιστήμονας κατά τη διάρκεια μιας άσκησης χημείας όπου παράγει μια αντίδραση που αναπτύσσει λευκό καπνό - Φωτογραφίες & Εικόνες Αρχείου

Flasks, burettes and materials for the most interesting chemical experiments to do at school

Laboratory flask. Experiences. Research. Reagents. Chemical reaction. Selective focus. Closeup.

Scientist pouring liquid nitrogen in steel thermos bottle at laboratory. Researcher prepare the experiment.

Creative scientists make experiments with liquid ice.

A closeup view of a laboratory technician carrying out a science experiment with purple liquid over freezing nitrogen. Steam rises from metal bucket.

Hand holding test tube during boiling reaction with smoke at chemical lab

Liquid nitrogen is seen rising against a black background inside a science lab as pharmaceutical worker carries out tests on blue liquid in test tube.

Test tube with pink fluid

A glass beaker with purple fluid is held above a bucket of liquid nitrogen against a black background. Chemistry and science lesson concept.

Scientist holding test tube with reagent, laboratory concept background

Hand holding test tube during boiling reaction with smoke at chemical lab

Blue liquid on liquid nitrogen

Watery fluid mixing in beaker close up

Chemical reaction in a test flask that gives off smoke