Exams & Certification

Compare and contrast serine proteases and aspartic proteases. Not all answers will be used. Serine protease Both Aspartic protease Answer Bank two aspartic acids in active site tetrahedral intermediate trigonal planar intermediate direct electrophilic attack by water catalytic triad of serine, leucine, and valine covalent intermediate direct nucleophilic attack by water four aspartic acids in […]

Referring only to a periodic table, give the ionic charge expected for each of these representative elements: (a) S, (b) K, (c) Br, (d) N, (e) Mg, (f) Ne, (g) C, and (h) Al. Write the Lewis symbols and structures that show how Na2O forms from sodium and oxygen atoms. The Correct Answer and Explanation

Solve For X. Round To The Nearest Tenth Of A Degree, If Necessary Round To The Nearest Tenth Of A Degree, If Necessary The Correct Answer and Explanation is : It seems like you’re trying to solve for an angle ( X ) using information from two images. Unfortunately, I cannot access external images directly.

True or false: In the theory-data cycle, theories eventually lead to doing an experiment, but do not directly/immediately lead to doing an experiment.. The Correct Answer and Explanation is : True. In the theory-data cycle, theories don’t immediately lead to experiments. Instead, they guide the formulation of hypotheses, which can then lead to experiments. Here’s

Throughout The Parable of the Sadhu, Bowen McCoy refers to the breakdown between the individual and corporate ethic. Explain what he meant by that and how, if we view the hikers on the trek up the mountain in Nepal as an organization, the ethical person-organization fit applied to the decisions made on the climb? View

Suppose that you have an unknown two-input gate that is either an OR gate or an AND gate. What combination of input levels should you apply to the gate’s inputs to determine which type of gate it is? Answer A logic HIGH and a logic LOW applied to the inputs of the unknown 2-input gate

The Correct Answer and Explanation is : 1. Protein in a Raw Egg vs. Cooked Egg The protein in a raw egg is chemically the same as the protein in a cooked egg. However, the major difference lies in the protein structure due to the process of cooking. In a raw egg, proteins are in

The Correct Answer and Explanation is :

The acid-dissociation constants of phosphoric acid (H3PO4) at 25 degrees Celsius are Ka1 = 7.510-3, Ka2 =6.2 10-8, and Ka3 =4.210-13. What is the PH of a 2.5M aqueous solution of phosphoric acid? The Correct Answer and Explanation is : To calculate the pH of a 2.5 M aqueous solution of phosphoric acid (H₃PO₄), we

The acid-dissociation constants of phosphoric acid (H3PO4) are Ka1= 7.5×10-3, Ka2 =6.2×10-8, and Ka3 =4.2×10-13 at 25.0 degrees celcius. What is the pH of a 3.0M aqueous solution of phosphoric acid? The Correct Answer and Explanation is : To calculate the pH of a 3.0 M aqueous solution of phosphoric acid (H₃PO₄), we must consider