PLS ANSWER ASAP
The Sun's outermost layer is the . A. corona B. photosphere C. chromosphere D. convective zone

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)

The same side of the moon always faces earth because the

Which of the following substances is the most soluble in water? a. sodium chloride b. methane c. bromine d. carbon