Isolated systems maintain the same amount of total energy, even though it may be transformed from one type to another. Which factor below would reduce the total
energy of this system over time?

Asingle atom of an element has 21 neutrons, 20 electrons, and 20 protons. which element is it? ok o z

Which statement can best be concluded from the ideal gas law?

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.