Want this question answered?
The mass remain unchanged.
the south can be racist.
The system remain unchanged.
yes
The color remain unchanged.
The mass remain unchanged.
The mass remain unchanged.
In theory, they can remain unchanged for their entire existence. However, in practise, nature isn't so nice and evolution happens eventually.
The mass remain unchanged; this is the law of mass conservation.
only if it is moved parallel to its original direction
The chemical structures remain unchanged.
The molecule of water remain unchanged.