A boat sailed for 7 hours at the speed of 80 km/h (killometers per hour). It changed speed to 95 km/h for the next 6 hours.

Ur e n d is not real

The answer is 65.3312

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   

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