Neeed some help

I`m making a simple game like candy crush by coco`s for android ana wanna help:

I want to know how to hide spirte by touching it then making a graphical animation like bomb in it`s position and how to move it and how to make a picture as a background for the scene.

Oh man, Could you make your wish step by step…?

ok.
1-how to hide a sprite by touching it?
2-how to make action like bomb?
3-how to make a background ?