No there won't be as season 3 of Sonic X, though it was made, never aired in Japan signifying that it wasn't popular.
Episode 78: So Long Sonic.
ep 78
if you mean the second part then 78
Yes, Sonic X has been finished since May 06, 2006, where the last episode, being episode 78 was aired.
Sonic X episodes 35-38 are really good in Japanese as it follows Sonic Adventure 2 storyline.
No, he was seen to be alive in the Japanese version of episode 78.
It already did. episode 78, now 4kidstv shows only re-runs
Chris assumingly went back to his home planet.
in sonic x you can find it write sonic x episode 18.
I'm not sure if they're even making any more episodes of Sonic X... so, probably not.
there are 78 episodes of sonic x
Sonic cries in Sonic X episode 52.