Of the metals pb hg na and mg which will not spontaneously donate electrons to copper in solution

Answer : Hg (Mercury)

Explanation : In the given series of elements Na falls after the Cu in the reactivity series, for Pb it also falls after Cu, and for Mg it is the same.

Only Hg which is mercury can spontaneously donate its electrons to copper in the solution because it falls before Cu in the reactivity/activity series.

d.) the average kinetic energy of the gas particles is greater in container b because its particles move faster.

one negative thing it that it can kill water animals. another negative thing is it can cause the destruction of ecosystem. one way water pollution can be reduced is to conserve energy.