La presión total de una mezcla gaseosa de O₂ y CO₂ es 8 atm. Calcular la masa molecular promedio de dicha mezcla sabiendo que la presión parcial de CO₂ es 2atm

Asap! how do you lengthen a pattern piece? (family and consumer science, sewing)

Which statement correctly describes metallic bonds? a. they form when certain atoms lose electrons and other atoms gain electrons. b. they involve an attraction between anions and cations. they always involvpoth a metal and a nonmetal. d. they can only form between atoms of the same element. e. they form because electrons can move freely between atoms.

How many grams of magnesium metal will react completely with 8.3 liters of 5.5m hcl? show all work