PHOENIX — There were plenty of fireworks for the Mets on the fourth of July and in the end, there was plenty to celebrate. The Mets opened a six-game road trip by defeating the Arizona Diamondbacks, 8-5, Tuesday at Chase Field, marking the first time in over a month the Mets have won three straight and only the fifth time this season the Amazins’ have won at least three in a row (longest winning streak is five games). There were six homers hit between the Mets (39-46) and Diamondbacks (50-36), but it was Francisco Alvarez who slugged the most impactful one.