Raymond scored at 19:00 off the rebound of a shot by Larkin to make it 5-2.
Henrik Borgstrom brought the Blackhawks to within 5-3 with his rebound goal at 1:58 of the third period.
Raymond scored on the power play to complete his hat trick and make it 6-3 at 7:00.
The Blackhawks had a goal by Toews at 11:04 of the third period during a 5-on-3 power play overturned after Blashill successfully challenged for goaltender interference by Kirby Dach on Nedeljkovic.
On the same power play, Nedeljkovic made a sprawling stick save on a shot by Alex DeBrincat.
"That was a lot," Blashill said. "Those aren't easy. I don't think you kill a penalty like that off without really good goaltending, and I thought 'Ned' raised his game to another level at that point once we got into that situation. He was excellent on the 5-on-3. And then we had some big blocked shots as well and some real smart play."
The two assists were Toews' first points after missing last season with chronic immune response syndrome.
"Specifics of what's said in the locker room always stay in the locker room," the Chicago captain said. "But you could imagine we're just trying to dig ourselves out of the hole that we've kind of gotten ourselves in for six games here. It's not a good feeling. At the end of the day, the solution's in our locker room. It's everybody. So I think everyone's trying to take responsibility on how they can be better and help our team and get the win column."
NOTES: Raymond is the second teenager to score a hat trick for Detroit, joining current Red Wings general manager Steve Yzerman, who did it twice (Dec. 23, 1983, and March 30, 1985). ... Raymond is the third Red Wings teenager to have a four-point game, joining Yzerman (Dec. 23, 1983) and Gordie Howe (Dec. 17, 1947). ... Blackhawks forward
Jujhar Khaira
, defenseman
Riley Stillman
and assistant coach Marc Crawford entered COVID-19 protocol Sunday, and forward Ryan Carpenter and defenseman Erik Gustafsson were removed.