Se disuelven 20 mL de alcohol en agua, formando 500 ml de solución. ¿Cuál es el % v/v de dicha mezcla

The organism shown is a free-living one that is anchored to the bottom of ponds and streams during one stage of its life cycle what is the common name for the group to which this organism belong

Which is an example of the practical pursuit of alchemy? a. forming perfect substances. b. transforming base metals. c. developing metalworking techniques. d. linking spiritual characteristics with material substances.

Which symbol can be used to indicate the pressure at which a chemical reaction is carried out? 25°c 2 atm pa