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A radioactive isotope of element X has a mass number of 79. The most stable isotope of this element has a mass number of 72. Explain the most likely mode of decay for the radioactive isotope is
Alpha emission
Beta emission
gamma emission
Positron emission
Electron capture
determine the structures of Compounds A, B, C, D, and E. Show calculations. Support all of your structure determinations. Student performed a sodium borohydride reduction experiment
Identify the spectator ions that will form when aqueous solutions of sodium carbonate and silver nitrate are mixed. Answer a. Na+, NO3-, and Ag+ b. Na+ and CO32- c. Ag+ and NO3- d. Na+ and NO3- e. Ag+ and CO32-
Balance the following equations and write the corresponding ionic and net ionic equations (if appropriate). 1) Balance the equation
What Volume of .0200 M KMNO4 is required to titrate a solution containing
fun activities that expose you to real-world chemistry and biology. exposure to real-life research and career
write separate oxidation and reduction half-reaction for the procedure used in the test for nitrate ions.
if air contains 78 n2 by volume what is the solubility of n2 in water of 25oc and 1 atm henrys constant kh for n2 in
Calcium nitrate and ammonium fluoride react to form calcium fluoride, dinitrogen monoxide, and water vapor.
At a certain temperature, the solubility of strontium arsenate, Sr3(AsO4)2, is 0.0690 g/L. What is the Ksp of this salt at this temperature
use the values for delta G to calculate Kp for the above reaction at 500 degrees celcius.
The mole fraction of A in the vapor is found to be 0.67. What is the mole fraction of A in the solution?
What volume of hydrogen can be produced at 22.0C and 1.01atm pressure by the reaction of 25.0ml of 2M HCL with 0.3g Zn?
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