What volume (in mL) of a 0.250 M sodium sulfate solution is needed to precipitate all the barium, as barium sulfate, from 12.5 mL of a 0.150 M barium nitrate solution? Provide the balanced chemical equation:

Calculate the change in entropy if br2(l) is converted to br2(g). 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)

Which of these conditions most likely produces an unstable isotope?

Asap! will give brainiest when a heat wave strikes a region causing more people to run air-conditioning units, electrical demand increases. what needs to be done to meet this increased demand? raising the control rodslowering the control rodsremoving the control rods