Depends on the situation, they are interchangeable... Passed Away implies they are "Gone from this place" or that they have "Left" to my mind it implies an afterlife of some sort; Deceased just means "Not Living"...
The following was gathered from www.freetranslation.com : Passed away = Скончавшийся
Loved ones who have passed away cannot do that.
it's "passed away"
Passed away
No, sorry to say she passed away in 2008
Elle a rendu l'âme (she gave back her soul)
R.I.P YOUR BIRTHDAY WHEN YOU PASSED AWAY sometimes pictures
When someone passes away, a sympathy statement might be "I'm sorry for your loss." And if you knew the deceased add something like, "She was a (warmhearted/thoughtful/loving/noble/charming/courageous/pioneering/passionate/plucky ) lady" Something positive that's true.
In general, saying your farewells to a senior citizen is no different than any other age group. However, if you mean senior citizens that have passed away or died, then it is respectful to attend the viewing and funeral of the deceased and quietly say your goodbyes to them,
Yes. My father is deceased is a polite way to say he is no longer with us.
When a deceased person is sent back to earth it is usually to deliver a message. As you do not say any such message was given then it is more than likely it was a dream which seemed so real to you. You do not say that you were awake but if you were then you did not let him deliver his massage
you say:"May you pleas pass the [item]" and when passed say Thank You.