An ammonium and sulfate salt of this metal named for Mohr is frequently used in titrations.
An ammonium and sulfate salt of this metal named for Mohr is frequently used in titrations. The first attempted synthesis of fulvalene accidentally created a molecule with an atom of this metal at its center. An enzyme in the Krebs cycle named aconitase has a catalytic center with atoms of this metal and (*) sulfur arranged in a cube. The first synthesized metallocene contained an atom of this metal at its center. This is the lightest element that cannot be used in stellar fusion without a cost in energy, or a supernova will occur. The mineral pyrite contains two sulfur atoms and an atom of this metal, and is commonly referred to as fool's gold. For 10 points, identify this metal found in ferrocene, whose oxide is rust.
An ammonium and sulfate salt of this metal named for Mohr is frequently used in titrations.
iron [or Fe]