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[[Equation d'une réaction chimique]] (Français) / [[Equation of a chemical reaction]] (Anglais) / [[معادلة التفاعل الكيميائي]] (Arabe)

* [[Acide]] : Acid (Substance which in solution gives a pH lower than seven. We obtain an acidic solution) * [[Acide chlorhydrique]] : Hydrochloric acid (Acid solution of hydrogen chloride in water)

* [[Accélération]]: Acceleration (Increase of speed or velocity) * [[Accélérer]]: To accelerate (To increase the speed of. To move or act faster)

…s code mentions the practice of hand pollinating date palms, the sexuality of plants was not understood until 1694. * Thales of Miletos believed that all life came from water.