Bickeldefines the political question doctrine, in the passage quoted in sec-tion I, in terms of the Court's sense of unease at straying into thedecision of difficult and delicate questions involving the separationof powers and requiring political expertise or sensitivity to makean intelligent decision.
A chelate is a chemical compound composed of a metal ion and a chelating agent. A chelating agent is a substance whose molecules can form several bonds to a single metal ion. In other words, a chelating agent is a multidentate ligand. An example of a simple chelating agent is ethylenediamine.ethylenediamine. A single molecule of ethylenediamine can form two bonds to a transition-metal ion such as nickel(II), Ni 2+ .n other words, a chelating agent is a multidentate ligand. An example of a simple chelating agent is ethylenediamine. ethylenediamine. A single molecule of ethylenediamine can form two bonds to a transition-metal ion such as nickel(II), Ni 2+ .
When dietary sources don't provide enough iron, a supplement may be needed for optimum health. Chelated iron is simply iron that has undergone chelation, a chemical process that firmly binds the iron molecule to another substance, usually an amino acid.Chelation forms a more stable ring-shaped molecule that is easier for plants and animals to absorb.hen dietary sources don't provide enough iron, a supplement may be needed for optimum health. Chelated iron is simply iron that has undergone chelation, a chemical process that firmly binds the iron molecule to another substance, usually an amino acid.