Daniel Murphy homered, doubled twice and tied career highs with five RBIs and four hits to help the Nationals to an 8-3 victory over the St. Louis Cardinals.
Matt Wieters and Jayson Werth also hit solo shots as Washington followed up a 14-6 series opening win Monday with another onslaught.
It was more than enough support for Gonzalez (1-0), who allowed two runs - one earned - over seven innings and retired his last 11 batters.
Murphy is batting .472 with five doubles, two homers and an MLB-leading 17 hits in the cleanup spot. This after he finished second in the 2016 NL MVP race with a .347 average, 25 homers and 104 RBIs in his first season in Washington.
Bryce Harper walked three times against Lynn to reach base in nine straight plate appearances going back to Monday. He later doubled.
Lynn (0-1) allowed six runs - four earned - and five hits and four walks over five innings. Randal Grichuk and Aldemys Diaz homered for St. Louis, and Jose Martinez went 2 for 4 in his first start.
Mike Leake looks to build upon an eight-inning outing to open the season.
Max Scherzer makes his first home start since the right-hander won the 2016 NL Cy Young Award.
>>Indians Edge White Sox
Michael Brantley doubled home Francisco Lindor with two outs in the 10th inning as the Cleveland Indians celebrated their 2016 AL championship and then beat the Chicago White Sox 2-1 on Tuesday in their home opener.
Brantley could only watch and cheer for his teammates last October during their postseason run after undergoing two surgeries on his right shoulder. But he's healthy now, and after playing in just 11 games last season, Brantley made the most of his first home game since May 10 with his game-winning hit.
Lindor walked with two outs off Tommy Kahnle (0-1) before Brantley sliced a 3-2 pitch down the left-field line. Lindor was running on the pitch and scored easily while Brantley danced around second base before being mobbed by his teammates.
It was the dramatic ending the Indians didn't get in their last home game, a 10-inning loss to the Chicago Cubs in Game 7 of the World Series. Cleveland led the majors with 11 walk-off wins last season.
Bryan Shaw (1-0), who took the loss when the Cubs won their first title in 108 years, got the win.
Derek Holland is 0-3 with a 5.74 ERA in his past three road starts.
Danny Salazar will be pitching on six days' rest after getting a no-decision in his first start. Salazar has a 5-2 career record against the White Sox.
>>Yankees Top Forbes List of Most Valuable Big League Clubs
Forbes ranks the New York Yankees as baseball's most valuable team for the 20th straight year and lists the Tampa Bay Rays with the lowest valuation.
Forbes said Tuesday it estimates the Yankees are worth $3.7 billion, up 9 percent from last year. The Dodgers are next at $2.75 billion, a 10 percent increase.
Boston was third at $2.7 billion, followed by the Chicago Cubs ($2.675 billion), San Francisco ($2.65 billion) and New York Mets ($2 billion).
At the bottom were the Rays ($825 million), Oakland ($880 million), Cincinnati ($915 million) and Cleveland ($920 million).
Major League Baseball's average team value rose 19 percent to $1.54 billion. Forbes says values increased because of new local television deals, as well as a "surge in profitability."