WILL GIVE BRAINLEST FOR FIRST ANSWER!!
Used in chemical reactions to break bonds and form new bonds
a.) chemical change
b.) color change
c.) endothermic
d.) exothermic
e.) chemical energy

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.