A track star ran exactly 483. meter in 45.0 seconds. How fast is that in miles per hour?Write your answer in decimal number

Ch4 and ph3 are both covalent since they are composed both of non-metals.    ch4 is non- polar because of  london forces and has a geometry of tetrahedral  ph3 , on the other hand, is umbrella shaped polar and has dipole-dipole intermolecular force (imf) . since ph3 is polar, it has a stronger imf   

C. definite shape, definite volume. that is a solid.