The main job of these systems is to break down food and for it to exit the body after taking out of it what is necessary such as nutrients
Answer is: name of the complex ion [Cu(CN)₆]⁴⁻ is hexacyanocuprate(II).
<span>First give name of the ligands (in this example ligand is cyano anion CN</span>⁻)<span>, in alphabetical order, then the metal atom or ion (in this complex compound metal ion is copper Cu</span>²⁺). Prefix for six ligands is hexa-. This is anionic complex, so name of the copper is cuprate and (II) stands for oxidation number of copper.