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What are the favored geometrical arrangements for ABn molecules for which the A atom has 2,3,4,5 and 6 pairs of electrons in its valence shell?
what is the diameter in micrometers of a spherical inknbspdroplet from an early version of an ink-jet printer if the
determine the kelvin temperature required for a 0.0470 mol of gas to fill a balloon to 1.20 l under 0.988 atm of
Calculate the pH of the solution after the addition of 30ml of 0.1M NaOH. Draw the structure of the form is His predominating in solution at neutral pH.
the electron configuration [Kr]4d10 5s2? How many unpaired electrons are there in the ground state of this ion?
A compound used to treat manic depressives has the formula Li2CO3. Which of the following is the correct name for this compound
Determine the exact molarity of NaOH (aq), when a sample of KHC8H404 dissolves in water and is titrated with 24.03 mL of NaOH(aq).
Having a really hard time with differentiating between endothermic and exothermic processes. A clearer explanation would be great. I don't understand what the difference is between a gas to a liquid or a liquid to a gas.
Which solution should be the most acidic? 1) Zn(NO3)2(aq) 2) Cd(NO3)2(aq) 3) Ga(NO3)3 (aq) 4) Hg(NO3)2(aq) 5) Al(NO3)3(aq)
the density of the fuel is 0.78 g/mL the initial temperature of the water is 25 degrees celcius and the standard enthalpy of formation is -224.4 kJ/mol
it was determined in a calorimetry experiment that a piece of copper metal of 92.0 gram released 1860 joules of heat to
Calculate the amount of heat liberated (in kJ) from 399 g of mercury when it cools from 73.0°C to 12.0°C.
suppose 532 ml of neon gas at 20c and 1.04 atmospheres and 376 ml of sf6 gas at 20c and 0.97 atmospheres are put into a
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