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How many electrons can be removed from element 69 before it is reduced to its core electron configuration? For the purposes of this question, the core electron configuration is the configuration of the next lightest rare gas atom.
which reaction has the greatest increase in entropya. 2h2o-gt 2h2 o2b. 2h2o-gt 2h2 o2c. h2og-gt h2old. h2ol-gt
how much heat (in kj) is needed to convert 866g of ice at -10 degree C to steam at 126 degree C? (the specific heats of ice and steam are 2.03 j/g degree C and 1.99 j/g degree C.
calculate the attractive bonding forces between the different ions, (2) compare qualitative curves of bond energy vs. ion separation distance for the two compounds
Helium gas is contained in a pressure vessel of volume V=10m3. Determine the mass (in kg) of helium in the tank if the temperature is 20°C and the pressure is 4 bar. Use the ideal gas law. For Helium, M=4.003 kg/kmol.
Rate data for an enzyme-catalyzed reaction and constructed a Lineweaver-Burk plot. The best-fit line had a slope of 2.3 minutes and a y-intercept of 4.7 x 10^4 min/M. Calculate Km and Vmax.
A) How many O2 molecules are needed to react with 6.09 of S? B) What is the theoretical yield of SO3 produced by the quantities described in Part A?
write the skeleton equation representing the heating of magnesium carbonate to produce solid mangnesium oxide and carbon dioxide gas.
Count Rumford observed that nine burning candles generate heat at the same rate that a single horse driven cannon-boring piece of equipment generates heat.
solution is needed to just neutralize excess acid after 20 mL of 0.500 M HCL was added to 1.00 g of the antacid, how many moles of acid can the antacid counteract per gram?
What is the percent yield if 5g of anthracene-9-carbaldehyde (MW= 206.24) is used to make 4.8g of 9-strylanthracene
The free energy change Delta G at 2400 K is equal to 1.22*10^5 J/mol. Calculate the equilibrium constant at 2400 K
The second is defined as a fractional part of a mean solar day. Express one second as a fraction of a mean solar day based on your knowledge that there are 60 s in 1 min, 60 min in 1 h, and 24 h in one mean solar day.
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