Which bond is the longest?
Please hurry!!

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.

Imagine that you push on a large rock. at what point does your effort change the rock’s mechanical energy?

What state of matter is ice a. liquid b. element c. solid d. gas