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A particular radioactive isotope of iodine contains 78 neutrons and is utilized for the detection of protein-losing enteropathy and therapeutically in thyroid cancer. In the full atomic symbol for this radioactive iodine what numbers would be written in the left superscript and left subscript positions, respectively?
Select all of the correct statements about equilibrium from the choices below. At equilibrium the rates of forward and reverse reactions are equal. As a reaction proceeds forward toward equilibrium the forward rate constant drops.
Describe with the aid of a diagram a possible transition state for the single step reaction between ch3br and oh^-1 to give methyl alcohol, ch3oh, and br-1
in one experiment .886 mole of NO is mixed with .503 mole of O2. calculate which of the two reactants is the limiting reagent . calculate also the number of moles NO2 produced
If 5.0 g of Al reacts with 4.45 g of O2, what is the empirical formula of aluminum oxide? (Type your answer using the format CO2 for CO2.)
Question- What is the concentration of phenylacetic acid, HC8H7O2, in a solution that is 0.065 M in potassium phenylacetate, KC8H7O2? What is the pH of the solution? Ka (HC8H7O2) = 4.9x10-5
compare the rates of effusion for oxygen molecules as compared to hydroge molecules. which will effuse faster and by
Student worked on a problem and the response indicated that NCl3 was a polar covalent bond. Explain how can that be when N and Cl both have electronegativity levels at 3.0
the following interactions can contribute to the intrinsic binding energy during enzymatic catalysis? Choose all that apply.- hydrogen bonding
A particular reactant decomposes with a half-life of 145 s when its initial concentration is 0.329 M. The same reactant decomposes with a half-life of 213 s when its initial concentration is 0.224 M. Determine the reaction order?
write a balance chemical equation for the combustion of 1 mol glycerin, and calculate delta H for this reaction at 298K if burning 1 mol glycerin has a delta E of -54.6 kj
Calculate how many grams of sodium fluoride and hydrofluoric acid are needed to prepare the buffer. c) Calculate the pH of the buffer after 15.0 mL of 0.10 M NaOH is added to 50 mL of buffer.
Problem- After equilibrium has been reached, the pressure of C is temporarily increased to 1.500 atm. Calculate the partial pressures of A, B, and C after equilibrium has been reestablished.
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