When copper is bonded to this anion, it can be reduced in the presence of aldehydes to an oxide, turning from blue to red in a reagent named for Benedict.
Joseph Gold claimed in the 1970s that hydrazine bonded to this ion could combat cancer. When copper is bonded to this anion, it can be reduced in the presence of aldehydes to an oxide, turning from blue to red in a reagent named for Benedict. This anion bonded to barium can be used to poison a Lindlar catalyst, and its sodium dodecyl version is used on proteins before the PAGE technique. Gypsum is composed of calcium bonded to this anion, and when it is combined with magnesium, it yields Epsolm salts. For 10 points, name this polyatomic anion formed by ripping two hydrogens off of sulfuric acid, with chemical formula S-O-four-two-minus.
Joseph Gold claimed in the 1970s that hydrazine bonded to this ion could combat cancer.
{sulfate} [accept {SO42?} before mentioned]