My kitchen sink is back up and the river is protection up into my bathroom sink. Why is this up to? I was wash dishes and the dirty water back up into my...

I was wash dishes and the dirty water back up into my bathroom sink, when I plunger the kitchen sink I can hear the water still within the pipes going back and forth between the kitchen and bathroom. Will drano or fluid plummer work on something like this?
Answers:    NO! find a rodder (DIY) or call a plumber.

liquid drain cleaners JUST DO NOT WORK!!!!!!!!!!!!

all they own is great marketing
yes, get a gel type that will pour through the clog