I was in the front passenger seat of a car about in chomedey, laval, about 80 feet from a stop sign on notre-dame. as we slowed i looked upwards and saw a silver sphere, then noticed a chemtrail next to it, seemingly an inch long and an eighth of an inch wide. as we slowed to a stop i saw that the sphere, whose diameter was the width of the chemtrail, seemed to be one third grey and two thirds silver, as if reflecting sunlight. i asked the driver if he saw the sphere and the chemtrail next to it and he said he did. we started to turn left and the sphere disappeared, the chemtrail not getting any larger. i did not take my eyes off the chemtrail until the view was blocked by a building a few seconds later.