What is the empirical formula for a compound if a sample contains 3.72 g of p and 21.28 g of cl?
pcl5
pcl3
p2cl10
p2cl5

Which of the following elements would you expect to have the lowest ionization energy value? fluorine, lithium, neon, nitrogen

Diffraction is when light is bent around obstructions. which of the these observation about clouds would indicate diffraction? a) after rain storms, you can sometimes see rainbows. b) clouds are white or gray and cannot be seen through. c) on a cloudy day, the temperature tends to be cooler than a sunny day. d) the edges of dark clouds appear lighter. this

Which of the following natural processes is most likely to support the formation of an underwater sinkhole? a pollution buildup from deposited minerals b limestone cave collapsing due to changes in sea level c erosion of large amounts of sand moved by ocean waves d oxidation of rock formed by chemical weathering