Small pieces of copper at 100.0°C are placed in 110.0g

of water at 25.0°C

in a perfectly insulated calorimeter. The water and copper reach the same final temperature. The initial and final temperatures of the water are shown.

A.220J

B.230J

C.460J

D.920J

Niye yedi puan mal oglu mal

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