Brandon Montour, Daniel Sprong and Jakob Silfverberg also scored for the Ducks, who won their fifth consecutive game and improved to 7-1-2 over their past 10. Goaltender John Gibson made 25 saves.
Erik Gustafsson and Alex DeBrincat scored for the Blackhawks, who have lost five in a row and dropped to 3-9-2 under coach Jeremy Colliton after he replaced the fired Joel Quenneville. Corey Crawford stopped 28 shots.
Kase broke a 2-2 tie at 4:03 of the third period, taking a long, cross-ice stretch pass from Carter Rowney to break down the right wing. Kase fired a shot over Crawford's left shoulder from the right faceoff dot.
Silfverberg scored an empty-net goal at 18:29 to cap the victory.
The Blackhawks had opportunities, hitting the post four times. Chicago's league-worst power play went 0-for-3.
After trailing 2-0 following the first period, the Blackhawks tied it at 2-2 in the second.
Gustafsson got the Blackhawks on the board at 7:16 of the period. Patrick Kane drove the puck along the boards below the goal line before shoveling a pass to Duncan Keith near the top of the left faceoff circle. Keith faked a shot and passed to Gustafsson, whose one-timer from the right faceoff dot beat Gibson to the near post.
Chicago tied it at 19:32 of the second, as DeBrincat took a pass from Jonathan Toews and batted the puck just inside the left post from close range.
Montour put Anaheim on top at 5:41, floating the puck toward the net from the point. The shot found the upper left corner of the net as Crawford was screened by Rickard Rakell.
Sprong made it 2-0 at 6:01, taking a banked pass off the boards from Adam Henrique down the right wing. Sprong, playing in his first game for the Ducks after being acquired Monday in a trade with Pittsburgh, nearly reached the goal line before firing a sharp-angle shot that made its way over Crawford's shoulder and into the far upper corner of the net.
It was Sprong's first goal in 17 games overall this season.
--Field Level Media
(This story has not been edited by Devdiscourse staff and is auto-generated from a syndicated feed.)