Si la presión total ejercida por 5 gr de cada uno de los gases He, C 02, CH4 es de 15 atm y el volumen del recipiente es de 25 litros a 25 °C. ¿Cuál es la presión ejercida por cada gas ¿Cuántos moles de cada gas están presentes en la mezcla?

How might this scientific phenomena be explained? a paper clip floats on water.

The picture represents the process that produces most of the energy used by living organisms on earth. which process is represented in the picture? a) the magnetic attraction between two hydrogen nuclei. b) the fusion of hydrogen nuclei to produce a helium nucleus in the core of the sun. c) the fission of hydrogen nuclei to produce a helium nucleus in the core of the sun. d) the chemical reaction between hydrogen nuclei to produce a helium nucleus in earth's atmosphere.

Achemical reaction is done in the setup shown , resulting in a change of mass. what will happen if the same reaction is done in a sealed container that is placed on the electronic balance?