Tubes et récipients en verre de chimie remplis de liquides colorés sur la surface du tableau noir avec quelques structures chimiques dessinées à la craie, faible profondeur de la composition du champ - Photo & image de stock

Chemistry glass tubes and vessels filled with colorful liquids over the blackboard's surface with some chemistry structures drawn with chalk, shallow depth of field composition

Chemistry glass tubes and vessels filled with colorful liquids over the blackboard's surface with some chemistry structures drawn with chalk

Flasks with colorful liquids in chemistry laboratory

Glass test tubes and retorts for chemistry

Old chemical lab with books

Chemistry glass tubes and vessels filled with colorful liquids against the blackboard composition

Image of chemistry or biology laborotary equipment

Test tubes on blue background

Academic chemistry class with beakers and books. Practical chemistry classes.

Multiple glass tubes and vessels over the blackboard with some chemistry structure formulas written over it

Multiple glass tubes and vessels over the blackboard with some chemistry structure formulas written over it

Erlenmeyer flasks filled with the red, blue and green colored liquid isolated over the white background, set of multiple foreshortenings

Chemistry glass tubes and vessels filled with liquids over the stack of colorful books against the blackboard composition

Blackboard with some chemistry structures drawn with chalk as a background composition

Multiple glass tubes and vessels over the blackboard with some chemistry structure formulas written over it

Blackboard with some chemistry structures drawn with chalk as a background composition with a shallow depth of field

Erlenmeyer flasks filled with the red colored liquid isolated over the white background, set of four different foreshortenings

Erlenmeyer flask filled with the green colored liquid isolated over the white background, set of four different foreshortenings

Erlenmeyer flask filled with the red colored liquid isolated over the white background

Erlenmeyer flask filled with the red colored liquid isolated over the white background