Suppose that a leak in the gas collection tubes acciden- tally let a small amount of air into the flask. The un-
wanted air exerts 25.2 torr of pressure in the flask. How
much pressure is the H, exerting in the flask?

What are the spectator ions in 2h+ + so42- + ca2+ + 2r → caso4 + 2h+ + 21?

The big bang nucleosynthesis theory states that elements were produced in the first few minutes of the big bang while elements have their origins in the interiors of stars, forming much later in the history of the universe.

Explain the relationship between forward and backward reactions in equilibrium, and predict how changing the amount of a reactant (creating a tension) will affect that relationship.