What event is foreshadowed by macbeth's aside in this scene

This chart lists four kinds of polymers and their sources. what can be known about all four polymers, despite their differences? they come from living things. they share ionic carbon bonds. they are at least 100 monomers long. they are made of repeating subunits.

Asubstance is a good conductor of electricity which of the following best explains a probable position of the substance in a periodic table

Calculate the energy required to ionize a hydrogen atom to an excited state where the electron is initially in the n = 5 energy level. report your answer in kilojoules