How do i tell my crush that i like them when they obviously dont like me back

honestly just tell them , the worst they can say is no . and you dont for sure know they dont like you back , i was best friends with someone for 3 years and they just told me they had a crush on me the enitre time . i usually can tell but it wasnt even noticeable . hope this encourages you to tell them !! :)

the potential energy of the reactants is 200j.

from the energy diagram, the energy of the product formed is 350j; this means that, this reaction is an endothermic reaction, because it absorbs energy from its environment.

the answer is 1 i believe