chemistry symbols click to hear : chemistry symbols

chemische Symbole click to hear : chemische Symbole

chemistry symbols image

reaction direction click to hear : reaction direction

Reaktionsrichtung click to hear : Reaktionsrichtung

reversible reaction click to hear : reversible reaction

reversible Reaktion click to hear : reversible Reaktion

positive charge click to hear : positive charge

positiv geladen click to hear : positiv geladen

negative charge click to hear : negative charge

negativ geladen click to hear : negativ geladen