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Explain how elements combine to form a covalent bond and how each element involved fulfills the octet rule.
At MIT, there is a winter-time student tradition of taking a large quantity (1 kg) of sodium metal and tossing it into the Charles river, where it explodes, gets tossed back into the air, falls again and explodes etc. over and over again until all..
the solubility of n2 in blood at 37 ordmc and at a partial pressure of 0.80 atm is 5.6 x 10-4 molel. a deep-sea diver
A hypothetical reaction X + 2Y ® Products is found to be first order in X and second order in Y. What are the units of k, the specific rate constant, if reaction rate is expressed in units of moles per liter per second? A) M•s-1 B) M-2•s-1 C) M-3•..
If a salty crude sample was analyzed to have 110.6 ppm salt, calculate the pounds of salt per 1000 bbls of crude
A 0.050 M CaCl2 solution is adjusted to a pH = 8. Will Ca(OH)2(s) precipitate.
A sample of air contains 76.50% nitrogen, 22.70% oxygen, 0.05% carbon dioxide, and 0.75% argon, by volume. How many molecules of each gas are present in 1.00 L of the sample at 25°C and 1.00 atm
What can be said about the stoichiometric coefficients of a balanced chemical reaction AND the powers to which the concentrations are raised in the rate-law expression
When 5.00g of LiCl is added to 100g of water the temperature of the water was found to increase by 9.94*C. Calculate the molar enthalpy of solution for LiCl. Assume the specific heat of the mixture is 4.18 J/g*C.
J. D. Dojahn et al characterized the potential energy curves of the ground and excited electronic states of homonuclear diatomic halogen anions (F2-, Cl2-, etc). These anions have a 2Sigma(u)+ ground state and 2Pi(g), 2Pi(u), and 2Sigma(g)+ excite..
How tdo you rotate fischer projections to figure out if they are D/L configurations. I know the difference between D/L but unsure of how to rotate them! Please you examples of D/L-Alanine
The mixed solution requires 28.55 ml of the EDTA solution to reach the end point. A similar amount of MgCl2 solution requires 2.60 ml to reach the endpoint.
Calculate the work (in kJ) done on the system when 1.10 moles of hydrogen gas are produced from the reaction of sodium in excess water at 298 K: 2Na(s) + 2H2O(l) ? 2NaOH(aq) + H2(g)
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