What is an energy level?​

Which of the following compounds does not contain molecules? question 2 options: co2 h2 nacl h2o

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.

Which of these is a physical property