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Write a nuclear reaction for the neutron-induced fission of U-235 to produce Te-137 and Zr-87? How many neutrons are produced in the reaction?
How many kilocal are required to increase the temp of 15.6g of iron from 122C to 355C? the specific heat of iron is
the pressure on a 625 ml sample of gas is changed from .925 atm to 1.45 atm. what is the new sample of gas?
If solar radiation is 1200 W/m^2 , how many photons strike the leaf every second? Assume three significant figures and an average wavelength of 504 nm for solar radiation. A green leaf has a surface area of 2.75 cm^2 .
An aqueous solution of sodium chloride contains 4.50g of CaCl2, per liter. What is the molarity of CaCl2? When calcium chloride dissolves in water, the calcium ions
What is the rate constant of a first-order reaction that takes 343 seconds for the reactant concentration to drop to half of its initial value?
what is the change in enthropy for this process in kJ/K*mole. The atomic mass of oxygen is 16.00.
Calculate the Gibbs free energy (in kJ/mol) at 80 degrees celsius. Assuming that the change in enthalpy is negligible over this temperature range
When 2, 2-diphenyl-1-ethanol is treated with aqueous HI the main product of the reaction is 1-iiodo-1, 1-diphenylethane. Propose a plausible mechanism that accounts for the formation of this product
What percentage error would be introduced in a 35.0 mL sample of liquid if the air bubble comes out of the tip of the buret while the liquid sample is being transferred?
The procedure (paragraphs 2 and 3) states that the additions of bromobenzene, methyl benzoate and hydrochloric acid must be done slowly.
If the ethane is burning at the rate of 0.20 mol/L.s, at what rate are CO2, and H2O being produced?
a 100.-L flask contains a mixture of methane, CH4, and argon at 25°C. The mass of argon present is 228 g and the mole fraction of methane in the mixture is 0.650. calculate the total kinetic energy of the gaseous mixture.
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