Which synthetic polymer gets harder as the number of carbon atoms in the polymer chain increases? silk rubber polyethylene nylon?

Iwll give extra points to who gets this for ! what type of reaction is this? ?

Brainliesttt me asap! the below reaction can be categorized as more than one type of reaction. which reactions are these, and what are the types of reactions?

Part 1: include important facts found through your research. part 2: include your visual display. include your summary of “the chemistry of water” from the national science foundation website. include your experiment. part 3: include responses to the reflection questions.