The reaction system SO₂(g) + NO₂(g) NO(g) + SO₃(g) is at equilibrium.

-When NO₂ is added to the container, the reaction shifts to [ Select from these answers]: ["the right", "neither direction", "the left"] ,

-the partial pressure of SO₂ [ Select from these answers]: ["does not change", "decreases", "increases"] ,

-and the partial pressure of SO₃ [ Select from these answers]: ["decreases", "does not change", "increases"] .