Carcone scored from low in the left circle 40 seconds later to push it to 2-0 at 17:21, converting a pass from Kevin Stenlund.
Nick Schmaltz then made it 3-0 at 9:47 of the second period when he put a rebound over the pad of Soderblom from the right side.
Lee extended the margin to 4-0 at 13:06, scoring with a tip in the slot.
The forward signed a three-year, $16.2 million contract (5.4 million average annual value) with the Mammoth on July 1 after playing all 14 of his previous NHL seasons with the New York Islanders.
Guenther scored his second power-play goal of the game at 15:28, redirecting a pass from Keller to make it 5-0.
“I thought we had good pace from the start,” Keller said. “We knew they were a fast, skilled team, and I thought we put pucks behind them, used our speed. Every single line was playing the same way, and just kept rolling it over and didn't get away from our game.”
Chicago defenseman Ian Cole, who played with Utah the past two seasons, said, “Obviously, it wasn't good enough, clearly, and we're going to have to take the next 48 hours and look at it and fix some things. We haven't put together a full 60 minutes yet to the standard that we have talked about and try to hold ourselves to. It's unfortunate the spot that we're in, but the fortunate thing is we have a game two days from now (at the Buffalo Sabres). We can try to rectify it.”
Daniil But made it a 6-0 final at 12:50 of the third period by deflecting a Carcone shot.
“I think that we’re a really good team when we play well but it’s got to be consistent,” Guenther said. “We’ve shown we can play a good 60, but there are 84 games. Just enjoy this one and then get ready for the road.”
NOTES: In addition to Lee, fellow offseason pickups Vincent Trocheck and Andrew Peeke found the score sheet in their Mammoth debut, with each getting an assist. Trocheck, a forward, was traded from the New York Rangers on July 1. Peeke, a defenseman, signed a one-year, $1 million contract on July 3. … Utah had 14 skaters with at least one point, which is a franchise record.