Urea dissolved in aqueous solution is degraded to ammonia and co2 by the enzyme eads. conversion rate is controlled by transfer of urea to the surface of the beads through liquid film, and the conversion takes place on the surfaces of the beads. the following parameters are given for the system. k 0.32 cm/s; km 235 mg/l m 0 sb 950 mg urea/l a. determine the surface concentration of urea. b. l4 mg urea/cm' support surface s. determine the rate of urea degradation under mass transfer controlled conditions.

indicate valleys, hills, steepness and gentleness of slopes.

explanation:

contour lines on a map indicate elevation, or depth. numeric notations on contour lines refer to the level of elevation, or height about sea level.

it's c. elements are placed in rows based on how may valencies electrons have.

answer:

the reaction is type of combination reaction.

explanation:

on the product side, there are 2 molecules of bonded to fe   which means one atom of fe are combined two molecules of . so, balanced chemical equation becomes :

this reaction follows the reaction type of combination reaction. a combination reaction is defined as chemical reaction in which reactants combines together to form a single product.

for step 7 table c on the lab "newtons law of action"   the average time it took the car to travel .25 meters   was 1.92 seconds.

the average time it took the car to travel 0.50 meters was 2.61 seconds

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