Consider an amphoteric hydroxide, M ( OH ) 2 ( s ) , where M is a generic metal. M ( OH ) 2 ( s ) − ⇀ ↽ − M 2 + ( aq ) + 2 OH − ( aq ) K s p = 3 × 10 − 16 M ( OH ) 2 ( s ) + 2 OH − ( aq ) − ⇀ ↽ − [ M ( OH ) 4 ] 2 − ( aq ) K f = 0.04 Estimate the solubility of M ( OH ) 2 in a solution buffered at pH = 7.0, 10.0, and 14.0.

One way that radioactive waste is treated is by burying it in repositories. the repositories are found only in states with very low populations. true or false? a. trueb. false(also i meant to put high school but it put down middle school instead)

One of the hopes for solving the world's energy problem is to make use of the fusion reaction 21h +31h --> 42he + 10n + energy how much energy is released when 1 mol of deuterium is fused with 1 mol of tritium according to the above reaction? the masses of the atoms and the neutrons are as follows: 21h = 2.0140 amu 31h = 3.01605 amu 42he = 4.002603 amu 10n = 1.008665 amu. the speed of light is 2.9979 x 108 m/s.

Which best describes eras and periods?