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a diagram that shows how to use the tag
the words are written in different languages
a hand drawn diagram of the chemical formulas and their corresponding names in english, chinese, and german
an image of a diagram with words and symbols in red, white and black colors
kwasy karboksylowe
an image of a bunch of notes with different things on them and some words in the middle
alkohol etylowy - podsumowanie
pochodne węglowodorów Na podstawie CHEMIA NOWEJ ERY wykonanie: Anna Żertka
a whiteboard with some writing on it and various things in the diagram above it
a handwritten diagram with the names and symbols for an annotary written in blue ink
aminy i aminokwasy