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Write balanced half-cell reactions for CH2O oxidation and SO4 reduction to HS and then add them together to get the balanced overall redox reaction.
Arrange the members of the following set of elements in order of increasing first ionization energies. (Use the drop down lists to indicate your choice, with 1 as the smallest IE and 6 as the largest IE.)
a sample of pure no2 is heated to 336 degree celsius at which temperature it partially dissociates according to the
Calculate the amount of heat needed to boil benzene (C6H6), beginning from a temperature of 6.7 degrees celcius.
A weather balloon at launch is partially inflated with 3.00 times 10 power 4l of helium at STP. what will be the volume of helium at an altitude of 7km, where the pressure is 0.41atm and the temperature is -20 degrees Celsius?
What will the concentration of alpha glucose be after equilibrium is attained? b. What will the concentration of beta glucose be? c. What would have happened if you began with 1M of beta glucose?
How does temperature affect the rate of biodegradation. How does temperature affect BOD5. How does temperature affect the ultimate BOD.
diatomic oxygen to form nitric oxide and water vapor: 4NH3 + 5O2 > 4NO + 6H2O When 20.0 g NH3 and 50.0 g O2 are allowed to react, which is the limiting reagent? How much water is produced and how much is left of the excess reagent
a smaller amount of A would remain in the water than if the solution were extracted with one 50mL portion of diethyl ether.
For each molecule, identify the central atom, the steric number on the central atom, the number of bonded electron pairs on the central atom, and the number of lone pairs on the central atom.
solution of NaCl are mixed together, and a precipitate forms. Which are the spectator ions in this reaction?
What is the voltage of the cell: silver-silver chloride electrode || saturated calomel electrode given that the potential for the Ag|AgCl electrode in a saturated KCl
Calculate the energy that must be removed to convert substance X from a gas at 119°C to a solid -47.9°C. Assume X has a molar mass of 75.0 g/mol.
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