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Metallic magnesium has a hexagonal close-packed structure and a density of 1.74 g/cm3. Assume magnesium atoms to be spheres of radius, r. Because magnesium has a close-packed structure, 74.1% of the space is occupied by the atoms. Calculate the volume of each atom; then find the atomic radius, r.
Volume of a sphere = (4Pir2)/3
At the present we know that over 99 percent of the time, glucose occurs in the closed-ring form. What likely difference between these forms would give chemists a clue that the open-chain form was not present.
Describe how structural modification helped the plant adapt to its environment. Assure the plant you select is an Angiosperm. For example, plants like the mosses, pine trees, and ferns are not the Angiosperms.
Discuss how many different gametes are formed in a test cross when the cross examines one gene, two genes and three genes?
express the role of double helix in complimentary base pairing in DNA replication.
When the children of various such two-child families are totaled, what proportion of children in these families will show the phenotype.
It also makes an antidote molecule called brevenal that binds to sodium channels and protects them against the toxin. Brevenal may end up being a treatment for CF; in a sheep CF model, brevenal blocked bronchoconstriction and enhanced the clearance o..
Calcium Polycarbophil is calcium salkt of polyacrylic acid cross linked with divinyl glycol. But what is its forumla.
Think about the following hypothetical scheme of determination of coat color in a mammal. Gene A controls the conversion of a white pigment P 0 into a gray pigment P 1 ;
Think about the nature of negative-feedback control and the function of the respiratory system, what effect do you predict that a decrease in CO2 in the internal environment would have on how rapidly and deeply a person breathes?
which nucleotide sequences represents complement to DNA
Within the two groups defined by bone mass, smaller skeletons have bones with evidence of epiphyseal plates, but the larger skeletons have only a thin line where the epiphyseal plates should be. Give the age group and gender of the four individuals i..
A scientist randomly separated a group of 100 lab rats into two groups of 50. One group was fed regular rat chow while the other was fed the same quantity of rat chow with added ddt. Both groups were housed in the same room with the same environmenta..
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