Identification: how do I know if I can snip and root in water?

I was told that if I snip off the longer parts and put them in water that they will root. I don't want to kill it so I haven't done that. I've always wanted to know which plants I can clip parts off of and root them in water. I don't know if this is some kind of tree or what it could be. Any info would help. Thanks.

 

Cissus rhombifolia, Oak leaf Ivy (not a true Ivy).

 

You can try rooting this one in water, just cut it belowa node (where the leaf and stem meet) and place it in water. It should have roots within a few weeks. The other trailing plant in the backround of your photocan also be propagated in water very easily.