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Draw energy level diagrams for beryllium, magnesium, and calcium ions. (b) What is the similarity in these diagrams?
The sodium ion and the neon atom are isoelectronic (have the same electron configuration). a) Write the electron configuration for the sodium ion and neon atom. b) Describe and explain the similarities and differences in the properties of these two chemical entities.
a 2.00 kg sample of pure water at 20.0 degree celsius absorbs 3.53 kJ of heat. What is the final temperature of the water?
A sample of gas with a volume of 750 mL exerts a pressure of 98 kPa at 30 c. what pressure will the sample exert when it is compressed to 250 mL and cooled to -25 degree celsius.
What mass of water can be heated from 36C to 100C by burning this piece of coal? Answer in units of g.
an electron is confined to a one dimensional box of length l it falls from the second energy level to the ground state and releases a photon with a wavelength of 322 nm. what is the length of the box
To see the affect on W when n > N/2, calculate W for N = 20 and n = 9 and 11. Is the result at all surprising? Why? Can you explain why you get this result? What other choices of n would give similar results?
Consider the combustion reaction between 26.0 mL of liquid methanol (density=0.850g/mL) and 13.0 L of oxygen gas measured at STP. The products of the reaction are CO2(g) and H2O(g),
At 80 deg. Celsius the vapor pressures of pure liquids X, Y, and Z are 385, 190, and 66 mm Hg, respectively. What pressure must be exerted on the surface of the solution containing one mole of X, three moles of Y, and two moles of Z for boiling to..
On heating 5.03 g of hydrated barium chloride, 4.23 g is left behind. What is the name of this hydrate?
Consider the autodissociation of water as the behavior of an Arrhenius acid. Use this to explain the temperature dependence of the autoionization of water and use it to explain
Write a reaction mechanism for the adol condensation reaction betweeen p-anisaldehyde
what is the root mean square distance travelled by an iodine molecule in benzene at 25 Celcius in 1.0 seconds.
draw the organic product you would expect to obtain from reaction of the following model triglyceride
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