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Why transition elements form interstitial compound
calculate ground state energy, 1st excited energy level, and wavelenght of an electronic transition between the 2 lowest energy states for an electron
The mechanism by which these compounds kill insects and people is unknown. D. These compounds kill insects and people by stimulating acetylcholinesterase, an enzyme of the nervous system.
When optically active B was treated with CrO3 in pyridine, an optically inactive sample of A was obtained. Heating A with hydrazine in base gave hydrocarbon C, which, when heated with alkaline KMnO4, gave carboxylic acid D. Identify compounds A, B..
When 30 mL of a 365 mL stock solution containing 1.8999999999999997 M AlCl3 is diluted to 81 mL, how many moles of Cl- are in the new solution?
a 1.50 l mixture of helium neon and argon has a total pressure of 1.47 atm at 298k. if the partial pressure of helium
Question- An LRC series circuit consists of an 85.0-? Resistor, a 14.0-F capacitor, a 1.50-mH inductor, and a variable frequency ac source of voltage amplitude 13.25 V. At what angular frequency will the inductive reactance be 4.00 times as large a..
Draw the Lewis structures for each of the following molecules or ions. Which do not obey the octet rule? (a) NO, (b) BF3, (c) , (d) OPBr3 (the P is the central atom), (e) XeF4
Briefly describe the hazards associated with even small amounts of each of the following: concentrated HCI, NaOH solution, AgNO3 solution, and solid NaHSO4
the mass of an electron is 9.11times 10-31rm kg. if the de broglie wavelength for an electron in a hydrogen atom is
What is the level of orbital hybridization around the central atom of molecules that belong to the following AXE classes: Select the one answer that is correct in all three columns.
How many grams of dry NH4Cl need to be added to 2.50 L of a 0.100 M solution of ammonia, NH3, to prepare a buffer solution that has a pH of 9.00? kb for ammonia is 1.8*10^-5.
Explain In the laboratory a student combines 25.5mL of a 0.203 M sodium nitrate solution with 24.3mL of 0.375 M manganese (II) nitrate solution. Define what is the final concentration of nitrate anion
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