A metal M forms a sparingly soluble sulfate salt. The logarithm of the concentration of the dissolved metal ion in a solution saturated in the metal sulfate is plotted bellow as a function of the logarithm of the concentration of sulfate ion in solution. What is the formula of the metal sulfate? a)M2SO4
b)MSO4
c)M2(SO4)3
d) M(SO4)2

How does a nuclear reactor produce electricity? a. high-energy gamma rays are converted by a generator into electricity. b. the heat from the reaction turns water to steam, which runs a generator. c. the reaction produces a stream of electrons that flow through wires and into batteries. d. the heat released from the reaction is used to burn coal or gas to produce electricity. e. control rods absorb the neutrons emitted and release a stream of electrons as electricity.