The Nets brain trust made a huge splash by adding Kevin Durant and Kyrie Irving on June 30, but have kept a low profile since. Other than general manager Sean Marks and coach Kenny Atkinson’s lone press conference in early July, they’ve maintained radio silence. Until now.

With both expected to meet the press Tuesday in Brooklyn, here are five burning questions they’ll have to deal with as they go into this season, the first one in years they enter with real expectations:

Can Atkinson keep good chemistry with this volatile mix?

Last year the Nets overcame so-so talent with superb chemistry. Now they hope adding to the former won’t ruin the latter. With Irving bringing a volatile mix, will the Nets’ cohesion be solid like last year, or just average? Or even bad, as it was in Irving’s disappointing final campaign in Boston?

“That’s always the trouble. That’s always the elephant in the room, right? … Last year we were able to come together even with injuries and in some cases galvanizing the group,” Spencer Dinwiddie told The Post. “We’re a more talented team, but if we don’t come together then it doesn’t really matter.”

Will KD play this year?

If chemistry is the elephant in the room, then Durant’s health must be more like a T. rex. After Durant ruptured his Achilles in June, the Warriors flatly stated that he would miss the upcoming campaign. But Marks has refused to rule him out, and the growing sentiment in NBA circles is that he could return this season.

An eight-month rehab would mean a February return, while nine months could have Durant back in March. Will the Nets see their star this season, or next?

How does Atkinson handle power forward with Durant out?

Taurean Prince and Rodions Kurucs were expected to vie for the starting job. But while Dinwiddie called Prince the biggest surprise of their Los Angeles workouts, Kurucs is facing an assault charge stemming from an alleged domestic violence incident.

“Rodi is one of my best friends, so I will support him whatever he does. And I will not judge him because of anything,” Dzanan Musa told The Post. “I don’t know what happened, so I will not comment on that. But he’s one of my best friends, so I will support him.”

Kurucs could get suspended, and Wilson Chandler already is suspended 25 games for PED use. Behind Prince, they still have to cobble together the rest of the power forward minutes with rookie Nic Claxton, Knicks castoff Henry Ellenson or even wing Joe Harris in small-ball lineups.

So how does Marks fill out the rest of the roster? Is it Melo Time?

Marks waited until Sept. 24 to add Alan Williams last year. Who will get the late spots this time around, with a two-way spot and a pair of Exhibit 10s still open? Don’t bet on Carmelo Anthony.

The ex-Knick played pickup with the Nets in L.A. and has several veterans stumping for him. But despite reports linking Anthony to Brooklyn, sources told The Post that’s unlikely. The Athletic cited ex-Net Dante Cunningham, Lance Thomas, Luol Deng and C.J. Williams as possibilities, with all but Williams fitting the positional need.

Meet the new boss. Will he be the same as the old boss?

In a word: No.

While Mikhail Prokhorov was virtually absent, new owner Joe Tsai will not only be more visible in Barclays Center (sitting courtside, no less), but could become a power player in the league.

“He’s a passionate basketball and sports fan. He not only wants to win, but he wants to operate a first-class organization,” NBA commissioner Adam Silver said at Friday’s board of governors meetings, also praising the hiring of ex-Turner boss David Levy as Nets CEO.

“[Tsai] will add enormous value to the entire league, not just because of his business operations in China, but because he’s a visionary media executive.”