Balance the equation P + O2 → P4O10

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)

Agas can holds 2.0 gal of gasoline. what is this quantity in cubic centimeters?

Design techniques and materials that reduce the negative environmental impact of a structure are referred to as