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Explain how many electrons should we expect to see associated with the lowest energy peak in the photoelectron spectrum of the element Gallium (Ga)?
Imagine that you have a 7.00 gas tank and a 4.50 gas tank. You need to fill one tank with oxygen and the other with acetylene to use in conjunction with your welding torch.
a boy use a metalnbsp that was heat up in hot h2o and then put into a styrofoam cup of h2o at room temperature.
In metallic magnesium, define what fraction of the 'molecular orbits' contained in the valence b as well as plus the conduction band are occupied by electrons
Titration of an oxalate sample gave the following percentages of percent oxalate: 12.28%, 12.54%, and 12.24%. Calculate the average and the standard deviation.
the standard enthalpy change for the following reaction is 104 kj at 298 k. c3h8 g 3 csgraphite 4 h2g deltahdeg 104
oxygen gas is generated by the thermal decomposition of potassium perchlorate. the oxygen gas is captured by water
Some of the cyclohexane solvent vaporized during the temperature versus time measurement. Will this loss of cyclohexane result in its freezing point being recorded as too high, too low, or unaffected Explain.
Titanium(6.94x10^-19 J and silicon (7.77x10-^19 J) surfaces are irradiated with UV radiation with a wavelength of 245 nm. what is the wavelength of the electrons emitted by the titanium surface
The thermochemical equation for the burning of ethyl alcohol is C2H5OH(l) + 3O2(g) --> 2CO2(g) + 3H2O(l) ?H = -1,367 kJ What is the enthalpy change (in kJ) for burning 9.68 g of ethyl alcohol
The composition of a gas on a dry basis is 71.0 mole% N2, 12.0% O2, 12.0% CO2, and 5.0% CO. If the mole fraction of water is 0.160, what is the gas composition on a wet basis?
In your house (elevation 950ft above sea level) you have a barometer that registers inches of mercury. On an average day in january, the pressure was 0.966 bar on 700 ft elevation
what is the theoretical mass of xenon tetrafluoride that should form when 130 g of xenon is reacted with 100 g of f2?
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