Calcula los gramos de zncl2 que se preparan a partir de 26.5 g de zn​

Asample of silver (with work function ? = 4.52 ev) is exposed to an ultraviolet light source (? = 200 nm), which results in the ejection of photoelectrons. what changes will be observed if: silver is replaced with copper (? = 5.10 ev) more photoelectrons ejected no photoelectrons are emitted fewer photoelectrons ejected more energetic photoelectrons (on average) less energetic photoelectrons (on average)

Why does a cake rise when you bake it? ♡

How much energy is made when a pice of wood burns. how do you know