What is the independent variable in this experiment? (Look at the photo)

what if one day you woke up and your nipples were completely gone
like no scars or anything, just flat skin
and then once you leave your room you find out your dad died last night
and then several days later, you find out that for your entire life your dad had been sneaking into your room while you slept
and sucking on your chest to make to gigantic hickeys where your nipples should be
because you were born without them
not for any sexual reason, just so you would fit in 6+9=hash’s forgive washing Tom

Hello thereone of the following properties was originally used to arrange elements on the periodic table, but is no longer used to organize the modern version. which property fits this description? answer: atomic mass  was originally used to arrange elements on the periodic table, but is no longer used to organize the modern version.

According to arrhenius theory of acid and bases, an acid is a proton donor, while base donates hydroxyl ions. further, acid and base reacts to form salt and water.consider following example.hcl    +      h2o          →      cl-          +      h3o+here, hcl has donated a proton, hence it is an acid.now consider following reactionhcl      +      naoh            ↔      nacl      +        h2oin this reaction, hcl donates proton, hence it is acid. on other hand, naoh donates hydroxyl ion (i.e. hence it is a base.