Work in Sports
The Senators, who lost to the Avalanche on Saturday, got on the board 6:43 into the first period when Zamuner's backhander from the left side of the net beat goaltender Patrick Roy.
With just under nine minutes remaining in the second period, Arvedson found a loose puck in the low slot and chipped it to the left of Roy to give the Senators a 2-0 lead.
Wade Redden and Andreas Dackell also had second period goals for Ottawa, which outshot the Avalanche, 41-20.
"The key tonight was the second period," Ottawa coach Jacques Martin said. "The thing we did better here than we did in Colorado was go to the net for the second and third opportunities. That's the kind of hockey team we have to be. If we do that on most nights, I think we could win a lot of games."
Ron Tugnutt improved to 3-0-1 by making 19 saves, including a nice pad stop on Adam Deadmarsh's slap shot from the right circle in the third period.
The win over Colorado was especially significant for Tugnutt, who had a rocky relationship with Roy when the two were teammates in Montreal from 1993-95.
"We didn't get along well when we played together, but there's a lot of respect there," Tugnutt said. "The biggest thing for me is beating that team. This win is big because of the way we bounced back after losing a few and the way we did it tonight is important, too."
Roy finished with 37 saves as his record dropped to 4-3-1.
"Ottawa is a very good team and they play a very solid game," Roy said. "But I don't think we played our best tonight. Sometimes, that's the way it goes. I guess breakdowns are going to happen. Over the course of the season, we'll have some bad nights. But obviously, we want to have more good nights."
Colorado rookie Alex Tanguay scored his third goal of the season midway through the final period to spoil Tugnutt's shutout bid as the Avalanche had a four-game unbeaten streak snapped.
"In order to win in this league, the level of intensity has to be there every night," Colorado coach Bob Hartley said. "I think Ottawa played with the same intensity tonight that we displayed on Saturday. They were sharp and they definityely deserved to win."
Before the game, the Senators honored Kevin Dineen, who played in his 1,000th game tonight.
"There were so many emotions before the game, thinking about my friends and family and all the great teammates I've had the privilege to play with," Dineen said. "A win like this is icing on the cake."