Chemistry, 21.05.2021 18:20, josecano2

De los siguientes conjuntos indique con una cruz los que constituyen un sistema material drogas en un botiquín
solución de sulfato de cobre en agua para verificar su cristalización x
alcohol para desinfectar una herida
hielo, vaso de precipitados, termómetro para determinar su punto de fusión. x
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