On brule un morceau de PVC dans une quantité suffisante de dioxygène . 1) Donner les formules des produits de cette combustion .

2) Quel est le volume de l’air nécessaire pour bruler 6,3 g de PVC sachant

que la combustion de 2900 mg de ce plastique nécessite 3 L de

dioxygène ?

True or false a high force means an object is moving fast100 points!

What statements accurately describe atoms

Which explanation describes the forces involved for a person to walk down the sidewalk? a. the person's feet push backward on the sidewalk; the sidewalk pushes backward on the person. b. the person's feet push forward on the sidewalk; the sidewalk does not push on the person. c. the person's feet push backward on the sidewalk; the sidewalk pushes forward on the person. d. the person's feet push forward on the sidewalk; the sidewalk pushes forward on the person.