Chelsea were certainly better in their efforts to score goals and create opportunities, but unfortunately they failed to maintain their lead because in the end Newcastle managed to steal a goal. The second half is certainly more exciting because the chances of both winning are 50:50, but Chelsea has home advantage to secure 3 points today.
Chelsea's defense is weak and Chelsea's attack power is still less aggressive, that's what Chelsea is experiencing now, often the opponent steals goals from the weakness of his defense, so I'm not sure Chelsea will win even though it's at home.
The chances of victory remain equal but who will get the 3 points? When Newcatle dominates the game in the second half then it is not impossible that a goal will occur for Newcastle but depending on Chelsea's attack that should be when there is a chance to become a goal.