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Which options apply to Purines and Pyrimidines? Purines: 1) contain one heterocyclic ring 2) contain two heterocylic rings 3) contain only two ring nitrogens 4) contain only three ring nitrogens 5) contain four ring nitrogens Pyrimidines: 1) contain one heterocyclic ring 2) contain two heterocylic rings 3) contain only two ring nitrogens 4) contain only three ring nitrogens 5) contain four ring nitrogens Purine vs Pyrimidine 1) guanine 2) cytosine 3) thymine
Select the strongest interparticle force(s) present in Mg3N2.
Draw the structure(s) of all of the alkene isomers, C5H10, that contain a branched chain. Specify E/Z isomerism in your drawings when appropriate.
For the reaction NH4CL(aq)=NH3(g)+HCL(aq),delta g=58.8 kJ and delta h=86.4 kJ. Is this reaction favored. If so, how. What would be the entropy change for the reaction of 2.04 moles of NH4CL(aq) at 349K and 1 atm
Enthalpy of combustion of ethanol(g) is -1371 kJ/mol. Temperature and pressure of intake mixture is 25 oC and 1 bar, respectively. Assume ideal behavior of diatomic gas and ignore the changes in the number of moles of gas during combustion.
What is the pH of a 0.5901 M solution of NaA. Note: HA is a weak acid with Ka = 6.144x10-8.
Suppose that the microwave radiation has a wavelength of 12.4cm . How many photons are required to heat 275mL of coffee from 25.0 ?C to 62.0 ?C?
The normal boiling point for acetone is 56.5 C. At an elevation of 5300 ft the atmospheric pressure is 630 torr. What would be the boiling point of acetone Hvap = 32.0 kJ/mol at this elevation
In a reaction between pure acetic acid and sodium bicarbonate, 10.1 grams of sodium bicarbonate was added to 21.0 mL of acetic acid. Which reactant is the limiting reactant in this reaction?
Determine the numbers of oxygen molecules are required for each molecule of C 6 H 12 O 6 glucose that is oxidized if Glucose is oxidized by molecular O 2 to CO 2 and H 2 O?
Calculate the final temperature of 33 mL of ethanol initially at 13 degrees Celsius upon absorption of 657 J of heat. (density of ethanol =0.789 g/mL).
a ball of aluminum c 0.897 jgdegc has a mass of 100 grams and is initially at a temperature of 150degc. this ball is
Complete the reaction of salicylic acid and 4-aminobenzenesulfonic acid by drawing the expected product.
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