An ionic compound is a substance that contains atoms that are bonded together through an ionic bond, where electrons are transferred from one atom to another. For the given experiment above, the material that is missing from the list is WATER or solvent. It is necessary because conduction through water will help you identify if a sample compound is ionic through its electrolytes. <span>Ionic compounds that are soluble are typically electrolytes</span>
The technology and exiting knowledge we have of the atom has gotten better over the years allowing for greater accuracy
Answer:
D. The side chains of D-Arg and D-Lys are not positioned to bind correctly at the active site
Explanation:
Stereospecificity is the ability to distinguish between stereoisomers of of a particular compound. L- and D- structures of compounds in living organisms are usually present in only one form due to stereospecificity. For example, naturally occuring amino acids in proteins are usually present as L-isomers.
Since enzyme are proteins, their active sites are composed of L-amino acid and they show stereospecificity in the reactions they catalyze. In their binding sites, only substrates complementary in structure can bind in order for catalysis to proceed. Therefore, only amino acids in the L- configuration are complementary to the active site of enzymes.
In the case of serine proteases, The side chains of -Arg and D-Lys will not be positioned properly for binding at the binding site of serine proteases, therefore, no catalysis will occur. On the other hand, L-Arg and L-Lys can bind to the catalytic site of serine proteases since they are complementary fits to the active site of the enzymes.
Answer:
The rate of the over all reaction is ;
![R=K[A_2]^{1/2}[B]](https://tex.z-dn.net/?f=R%3DK%5BA_2%5D%5E%7B1%2F2%7D%5BB%5D)
Explanation:
Step 1 : 
fast
Step 2 : 
slow
Equilibrium constant of the reaction in step 1:
![K_1=\frac{[A]^2}{[A_2]}](https://tex.z-dn.net/?f=K_1%3D%5Cfrac%7B%5BA%5D%5E2%7D%7B%5BA_2%5D%7D)
....[1]
Overall reaction:
When there is a chemical reaction which taking place in more than 1 step than the rate of the over all reaction is determined by the slowest step occurring during that process;
Here step 2 is slow step, so the rate of the reaction will be;
![R=k[A][B]](https://tex.z-dn.net/?f=R%3Dk%5BA%5D%5BB%5D)
..[2]
Putting value of [A] from [1] in [2]:
![R=k\times \sqrt{K_1\times [A_2]}\times [B]](https://tex.z-dn.net/?f=R%3Dk%5Ctimes%20%5Csqrt%7BK_1%5Ctimes%20%5BA_2%5D%7D%5Ctimes%20%5BB%5D)
K = rate constant of the reaction
The rate of the over all reaction is ;
Probably life science or biology.
