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When the base pair A=T in the middle of a short (20 nucleotide) synthetic duplex DNA strand was replaced with a. Z F base pair (shown below) the duplex was destabilized by about 13.4 kJ/mol.
However, when the pair was at the end of the strand it was in fact more stabilizing than A=T.
Explain these results in light of weak forces responsible for the DNA double helix.
Draw the skeletal structure of the major organic product in the following reaction (water is also a product).
Depict three structures of three sulfur containing acids. Decrease formal charges by expanding sulfur's octet. Include any non-bonded electrons on sulfur only.
a toothpaste contains 0.24 by mass sodium fluoride used to prevent dental caries and 0.30 by mass triclosan a
A compund with the formula c15h14o has a strong peak near 1720 cm-1 in the IR. The HNMR spectrum shows a 3H singlet at sigma 5.08, and a 10H multiplet at sigma 7.25. Draw the compund
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Hydrogenation reactions are used to add hydrogen across double bonds in hydrocarbons and other organic compounds. Use average bond energies to calculate DELTA Hrxn for the following hydrogenation reaction
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Eggshells contain calcium carbonate CaCO3. What test would determine the presence of carbonate in these substances and how would u write the chemical equation for this reaction
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Write equations that show the processes that describe the first, second, and third ionization energies of a boron atom. I got the first and second ionization correct but for some reason it keeps telling me that my equation for the third ionization..
What is the copper physcial and chemical properties and it's extraction methods and it's melting and poiling point
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