pick video reaccionshttps://visions.upc.edu/ca/steam-a-classe/experiment-3-escoltant-reaccions-quimiques/pick-video-repte-3.png/viewhttps://visions.upc.edu/ca/steam-a-classe/experiment-3-escoltant-reaccions-quimiques/pick-video-repte-3.png/@@download/image/pick video repte 3.PNG
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