Blog

22.  (WCSU24.[x], 8 points) You are designing a new brand of hot pack using CaCl2 and water. The thermochemical equation of the dissolution process is shown below.   CaCl2(s)      

(WCSU24) Select all functional groups present in the structure of the drug.  

(WCSU24) Fill in the following table with the appropriate number of protons, neutrons, and electrons (enter a number only).     Protons Neutrons Electrons 48Ti+4 [blank1] [blank2] [blank3] 35Cl- [blank4] [blank5] [blank6]

(WCSU24) Rank the molecules (a, b, and c) in order of increasing carbon-oxygen bond length.    shortest   [blank1]

(WCSU24) Select the appropriate word that makes each sentence true. a. Melting is [drop2]. b. Intermolecular forces occur [drop9] molecules.  c. When intermolecular interactions are broken, energy is [drop1].   d. The energy absorbed when liquid water vaporizes is [drop3] than the energy absorbed when ice (solid water) melts.  e.   A temperature decrease is observed when NH4Cl is dissolved in water.  We can conclude that the total intermolecular interactions formed between solute and solvent are [drop5] than those broken.  f. As temperature of a substance increases, kinetic energy [drop8]. g. The

(WCSU24) Below is the structure of glutathione, a powerful antioxidant produced in the liver that plays a role in removing free radicals that can cause cell damage.  Identify the formal charges on the atoms A-D.  All the lone pairs are drawn in for you.  Labeled Atom Formal Charge A [blank1] B [blank2] C [blank3] D [blank4] , Periodic Table

17.  (WCSU24.[x], 8 points) Zinc gluconate (C12H22O14Zn, MW = 455.685 g/mol) is the active ingredient in Cold-Eeze lozenges.  The label claims that zinc supplements can shorten the common cold by 42%.    a. What is the mass percent of zinc in zinc gluconate? b. There are 94 mg of zinc gluconate in a Cold-Eeze lozenge, how much zinc is consumed?   Periodic Table   In the box below, enter the mass of zinc consumed from part b.

Which of the following is not true regarding the consequences of Nat Turner’s Rebellion?

What was the primary purpose of dueling in the South?

What was the main objective of Winfield Scott’s Anaconda Plan?