Arrange the ions from largest to smallest.

Se^2-, Sr^2+, As^3-, Br^-, Rb^+

Calculate the change in entropy if br2(l) is converted into gaseous br atoms. s° for br2(l) = 152.2 j/(mol•k) s° for br2(g) = 245.5 j/(mol•k) s° for br(g) = 175.0 j/(mol•k)

What pressure will be exerted by 0.675 moles of a gas at 25*c if it is in a 0.750-l container?

6. what does the symbol ah stand for? o one calorie given off by a reaction the specific heat of a substance the heat capacity of a substance the heat of reaction for a chemical reaction