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1. Identify three radioactive elements or reactions of different types and write the nuclear reaction for each element.
2. Provide a short description (4-6 sentences) of the role of the radioactive element or reaction in the area of interest that you selected. Include information about the type of radiation emitted and the half-life that makes the element appropriate for the use (or a problem if you are looking at something that is detrimental).
Chemical reaction calculations, 1. Unbalanced equation SOCL2(1) + H2O(1) --- SO2(g) + HCl(g). How many molecules of H2O can 35.0 grams of thionyl chloride remove?
what is the relationship between the dipole moment and the bond moment? how is it possible for a molecule to have bond
Solutions of AgNO3 and KCl are combined and 0.683 g of a precipitate are formed. What is the precipitate and how many moles were formed.
What would be the percent by mass of NaI solution prepared by dissolving 95 g NaI in 450 g water?
Explain solution of an unknown acid HX, determine that the pH of the solution is 4.00. What is the [H3O+] in the solution?
The mass of Earth is 5.974 ô°€ 1024 kg. Assume that Earth is a sphere of diameter 1.28 ô°€ 104 km and calculate the average density of Earth in g/cm3.
draw the shape of the molecules and give the orbital geometry around the central atom; the molecular geometry; and give the hybridization state
What types of limitations and obstacles must any plausible origin of life scenario overcome, and why did Crick believe life couldn't have formed on Earth?
An unknown element, X, reacts with chlorine to form a compound with the formula XCl2. Which element is most likely to be element X?
A feed mixture weighing 200 kg of unknown composition containing water, acetic acid, and isopropyl ether is contacted in a single stage with 280 kg of a mixture
A 10.0L container of helium gas with a presure of 250mmHg at 0 degrees Celsius is heated to give a pressure of 1500mmHg. What is the temperature in degrees Celsius?
A distance of 200 ft must be taped in a manner to ensure a standard deviation smaller than ± 0.03 ft. What must be the standard deviation per 100 ft tape length to achieve the desired precision?
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