Ramsey made it 3-1 with a spectacular back-heeled goal and then substitute Pierre-Emerick Aubameyang netted twice in the closing stages as Arsenal won six consecutive league matches within a single campaign for the first time since 2016.
"The team spirit is better", Iwobi, who helped create Alexandre Lacazette's opening goal, told reporters after the game.
The hosts were more than a match for Emery's side in the first half, Arsenal kicking-off just 56 hours after landing back from their Europa League trip to Azerbaijan.
Liverpool, who remain unbeaten in their last 18 home games against City, came out roaring and dominated the opening 10 minutes but Pep Guardiola's visiting side weathered that early storm and were the more unsafe after the break.
There are fears that Arsenal might lose star player Aaron Ramsey for free, without cashing in on him after they were unable to tie him down with a deal.
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The company didn't provide a detailed breakdown of results yet, but analysts are ready to fill in the blanks. Sales for the third quarter were 65 trillion won, matching the average projection compiled by Bloomberg.
With Ramsey also providing a superb through ball to set up Aubameyang's second - and Arsenal's fifth - his contribution to the win was enormous, with all five of Arsenal's goals beautifully worked.
[I was pleased] not only with the first XI but with the substitutes.
Following the game, Keown appears to have criticised Ozil for missing the game and stated that Arsenal did not miss the ex-Germany worldwide.
Ramsey was introduced in the 67th minute - and the Welshman added a third just seconds later as Arsenal moved from left to right with one-touch passing and neat headers.
"I want to give them and to show them we are improving with our quality, with our mentality and above all with commitment we had here today".
Arsenal were a different side after the interval and Bettinelli - called up by England this week - produced the save of the game to keep out a fierce strike from Hector Bellerin, moments before Lacazette added his second - an early strike from long range which seemed to catch the Fulham keeper by surprise as it nestled in the bottom corner.