code: protected boolean bindsHydrogen(IBond bond) {
          for (int i = 0; i < bond.getAtomCount(); i++) {
              IAtom atom = bond.getAtom(i);
              if ("H".equals(atom.getSymbol())) return true;
          }
          return false;
      }
docs: Check to see if any of the atoms in this bond are hydrogen atoms.
  
  @param bond the bond to check
  @return true if any atom has an element symbol of "H"