What is 1 item that is a compound?

Give an example of how the 1 item is a compound :D

Why do scientists look for patterns in the world? a. patterns can explain observations. b. patterns never change, no matter what. c. patterns are easy for scientists to detect. d. patterns are all the same, through all time.

Provide a stepwise curved arrow mechanism that fully explains the outcome of the reaction shown below. oh нао* heat он

Is 9 correct? and can someone me with 10? it’s due tomorrow, you