Determine which statements regarding aconitase are true. An equilibrium mixture contains less than 10% citrate, but the isocitrate dehydrogenase reaction is exergonic, and draws the aconitase reaction to the left. The iron of the iron-sulfur center forms a complex with the substrate that involves two hydroxyl groups from citrate. Aconitase is stereospecific. The reaction proceeds through the intermediate cis‑aconitate. Aconitase contains the iron‑sulfur center Fe2S2Fe2S2 .

How much would the freezing point of water decrease if 4 mol of sugar were added to 1 kg of water(k=1.86 c/mol/kg for water and i=1 for sugar

The formation of a solid, also known as a is an indication of a chemical change. precipitate particulate particle powder

The content of manganese (mn) in steel was determined spectrophotometrically and with the use of the standard addition method. an unknown sample of mn from a digested steel sample gave an absorbance of 0.185 when analyzed spectrophotometrically. when 5.00 ml of solution containing 95.5 ppm mn was added to 50.0 ml of the unknown steel solution (digested sample), the absorbance was 0.248. calculate the concentration, in parts-per-million (ppm), of mn in the digested steel sample solution.