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Draw the structures of adenine, guanine, cytosine, uracil and thymine, as well as GC and AU base pairs.
Sketch a double stranded DNA structure (showing a short AGCT sequence along with polarity) and demonstrate the principle of genetic heredity between parent and daughter DNA strands.
The U.S. national ambient air quality standard for CO in a 1-hr period is 35 ppm. How many times greater than this standard is the CO concentration in cigarette smoke
What is the molar composition of the dense gas and it's chemical formula? What is the element name and identity and atomic mass of the grey substance
Mendeleev noticed that properties of elements generally repeated at regular intervals when the elements were arranged in order of increasing
calculate the theoretical yield of when 110g of c2h6 reacts with 207g cl2 of assuming that and react only to form
The molar heat capacity of is described by the following equation over the range 300
write Lewis structure for Oxygen difluoride, OF2. How many lone pairs are one the oxygen atom
What is the frequency of the photon emitted when a molecule of NaH drops from the second to first level?
Make a flow sheet for the separation of a three component mixture that contains 4-chlorobenzoic acid, 3-nitroaniline and 1, 3, 5-trimethylbenzene. There is one acid, basic as well as neutral compound. Demonstrate the structural formula for each co..
The actual yield was 6.15 g of CaCO3. Calculate the limiting reagent and the percent yield. Explain and show all work in how you obtain your answer
One method to produce nitrogen in the lab is to react ammonia with copper (II) oxide: NH3(g) + CuO(s) Cu(s) + H2O(l) + N2(g). After using 40.0 grams of NH3, 15.5 grams of N2are produced. What is the percent yield of nitrogen in the reaction?
78 ml of 2.5 m phosphoric acid is neutralized with 500 ml of potassium hydroxide. what is the concentration of the
A flexible container contains 1.50 L of gas at 25 degrees Celcius. What is the new volume when the container is heated to 100 degrees Celcius?
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