3b. What is the value of the rate constant, k, in your rate law, and give its units? k=

O.002015 mol 4. For the acid in Option do the following: HO,CCH,C H2 CH,CO2H a) Draw a Lewis structure of the acid and mark the acidic hydrogen(s) with an asterisk (*). (Hint: Organic acids, those composed of C. H. and 0, will have the partial structure "HO2C-" or "-CO2H" written in the formula, In these cases, both oxygens are bonded to the carbon and the hydrogen is bonded to one of the oxygen atoms) b) Draw a structure of the conjugate base of the acid you drew in 4a) c) Draw a structure of the conjugate base of the species for which you drew a structure in 4b) d) Which of the structures you've draw above (4a, 4b, or 4c) can act as both an acid and a base? Write appropriate chemical equations to explain your answer. Xavier University of Louisiana 176

Subject: chemistry

Which of the following is classified as abortificient? Quinine Pitocin Alcohol Use of foreign objects All of the above

The name carbohydrate comes from the fact that many simple sugars have chemical formulae that look like water has simply been added to carbon. (The suffix hydrate from the Greek word hydor ("water") means "compound formed by the addition of water.") The actual chemical structure of carbohydrates doesn't look anything like water molecules bonded to carbon atoms (see sketch at right). But it is nevertheless possible to chemically extract all the hydrogen and oxygen from many simple carbohydrates as water, leaving only carbon behind. If you search the Internet for "reaction of sulfuric acid and sugar" you will find some impressive videos of this. Suppose you had  300.g  of ordinary table sugar, which chemists call sucrose, and which has the chemical formula  C12H22O11 . Calculate the maximum mass of water you could theoretically extract. Be sure your answer has a unit symbol, and round it to the correct number of significant digits.

33) please see attached

Which of the following answer choices is an alloy?  A) titanium  B) zinc C) copper D) brass

f) 1) 03 2) Zn, H₂O

Consider Copper (Cu), Silver (Ag), Silicon (Si), Aluminum oxide (Al2O3), silicon carbide (SiC), and polyvinyl chloride (PVC). Please select the correct answers. (There may be more than 1 correct answer!). (a) Cu and Ag are metal and have metallic bonding. Si, and Al2O3 are ceramic. PVC is polymer. (b) Cu, Ag and Si are metal. Cu and Ag have metallic bonding, but Si has covalent bonding.  SiC and Al2O3 are ceramic with covalent and ionic bonding, respectively. (c) Electrical conductivity: Ag > Cu > Si > Al2O3 > PVC (d) Cu and Ag have FCC structure. Si and SiC have diamond-type structure.

Which of the following provides an absolute measure of the molecular weight of polymers:(a) viscometry, (b) cryometry, (c) osmometry, (d) light-scattering photometry, (e) GCP?