Given the two reactions h2s⇌hs−+h+, k1 = 9.58×10−8, and hs−⇌s2−+h+, k2 = 1.58×10−19, what is the equilibrium constant kfinal for the following reaction? s2−+2h+⇌h2s enter your answer numerically.

Of the groups of elements below, which are most likely to gain electrons to become anions? a. alkali metal b. boron group c. halogen d. transition metal

Match term definition ellipse a) diagonal cross section of a cylinder circle b) diagonal cross section through the widest part of a sphere sphere c) cross section parallel to the base of a cone great circle d) shape created when a semi-circle is rotated around the y-axis triangle e) perpendicular cross section of a cone

Describe the forces both attractive and repulsive that occur as two atoms move closer together.