What do sound waves, light waves, and ocean waves all have in common?

a.
they all transfer energy.

b.
they are all electromagnetic waves.

c.
they all require a medium to travel.

d.
they are all mechanical waves.

According to periodic trend, which of the following most likely has the highest ionization energy? kr be ni sc

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)

How many moles of lead are in 1.50 x 10^12 atoms of lead? could you explain the answer as well and not just give it to me i am refreshing for finals and i need to know how to do it