Chen and Yang, who won all four meets in the diving world series this season, led from the start and finished with their best dive of six for a total of 498.48 points. It was Chen's second gold in this event after winning at the 2015 worlds with Lin Yue.
"The last time my partner was a stable, calm person (Lin), and this time I came with a new partner (Yang). So it was a challenge. The last time was a more relaxed competition," Chen said. Russia's Aleksandr Bondar and Viktor Minibaev, almost 40 points behind, came closest to the Chinese for the silver, and Germany's first medal of the week went to third-placed Patrick Hausding and Sascha Klein.
The latter equaled the record of three medals in this event at the worlds, after winning in 2013 in Barcelona and claiming silver in 2011. "We couldn't be more satisfied," Hausding said. He said it was the last dive for Klein, who retired. "This was our last competition as a team so getting a medal at the end, with all our family and friends watching, is everything we could ask for."
Shi and Chang upheld China's winning streak from Sunday. They also led from the first round and produced an almost-perfect forward 2-1/2 somersaults, one twist pike in the fifth for a total of 333.30.
It brought Shi her sixth gold medal in diving at the worlds and her fourth in this event. Shi said: "First of all, I feel really happy we won this gold medal, and then I would like to mention that my partner is only 15 and (this) was her first (worlds), so I feel very happy for her."
Melissa Citrini Beaulieu and Jennifer Abel finished with an inward 2-1/2 somersaults pike to claim Canada's first medal of the championships, a silver, with 323.43. Abel claimed a medal in this event at the previous three worlds, and her fourth made her the most decorated non-Chinese athlete in women's 3-meter springboard.
"I didn't know that, it feels great, and it was part of the plan. Every time I compete it's to be on the podium. Having one more medal makes my career even better at the end," Abel said. Kristina Ilinykh and Nadezhda Bazhina won the bronze for Russia, its first of the championships and sixth at the time. Bondar and Minibaev made it seven later.