Could Scorching Ray trigger 3 Hex?

@JeremyECrawford looking back through this, Magic Missile hits automatically so its not an 'attack', but could Scorching Ray trigger 3 Hex?

— Matt Abernathy (@Matt_Abernathy) December 8, 2016

Scorching ray involves attacks that can hit. Hex is triggered whenever you hit its target with an attack. The two spells work together. #DnD https://t.co/khayZUY73K

— Jeremy Crawford (@JeremyECrawford) December 8, 2016