Asystem releases 255 cal of heat to the surroundings while delivering 428 cal of work. what is the change in internal energy of the system (in cal)?

This is what i found on google “what happens to the bond angle when you add or remove an electron domain? the bond angle decreases as you add domains 5. can you force the atoms into new configurations by pushing atoms around? note: we can think of a bond or a lone pair of electrons as a “domain” of electrons.” i hope this you