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Which is lower in energy in this reaction: a mixture of hydrogen and oxygen gases or water? how do you know that this is true? Explain and sketch an energy level diagram for this reaction to help support the answer.
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The reaction of solid dimethylhydrazine ((CH3)2N2H2) and liquefied dinitrogen tetroxide (N2O4) has been investigated as a rocket fuel; the reaction produces gaseous carbon dioxide (CO2) nitrogen (N2) and water vapor (H2O ...
Match the reaction provided on the left with the correct reaction classification/type on the right [NOTE the reaction equations are not balanced] . Reaction classification/types can be used more than once or not at al ...
Calculate the number of moles of barium chloride in 427g of a 3.17% by mass barium chloride solution?
A decompression chamber used by deep-sea dives has a volume of 10.3 m 3 and operates at an internal pressure of4.5atm. What volume, in m 3 would the air in the chamber occupy if it were at 1 atm pressure, assuming no t ...
The common charges of an element can be related to the electron configuration of the element. Why would copper ions have 2 common charges? Explain each of them in terms of the electron configuration.
What are the benefits of measuring the absorbance at the maximum absorbance wavelength? If light has a wavelength of 756 nm, what is the wavelength in centimeters? What is the wavelength in inches?
Suppose 100.0 mL of an aqueous solution containing an unknown monoprotic acid (called HA) is titrated with 0.150 M KOH. The titration requires 47.82 mL of the potassium hydroxide to reach the equivalence point. What is t ...
At a given pressure and temperature, it takes 198.7 sec for a 2.6 L sample of Kr to effuse through a porous membrane. How long does it take for 2.6 L Ar to effuse under the same conditions?
If 14.40 grams of RbCl are dissolved in water to make a solution of 0.224 L, the density is found to be 1.047 g/cm 3 . Calculate the molality of the solute.
What is the subshell electron configuration for the Ca20 atom? Which are valence electrons and how many valence electrons are there?
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