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Draw the lewis structure for aluminum sulfide ionic compound and what chemical formula the lewis theory predicts? I do not know what to do with the 6 and 3 dot structure to combine them. Such as the AL2S AL has three dots and S has 6 dots and to balance they share to to make the 8 but I do not know where to go from here.
What is the minimum concentration of ammonia that should dissolve AgBr to produce a 0.01 M Ag(NH3)2+ solution
a 486 mL sample of water was cooled from 50C to 10C. assuming a specific heat of 4.184 J/K g and a density of 1.00 g/mL, find the amount of heat transferred.
re-establish equilibrium conditions as described: The pressure if the system is increased by decreasing the total volume. a) shift to the left b)shift to the right c) no change
Read carefully, 0.1M HCl is added into a mixture of 25mL of water and 25mL of Ca(OH)2. For the end point to be reached 1.3mL of 0.1M HCl is added into the mixture. How would I calculate the molarity of the hydroxide ion (OH-) for this final mixtur..
A natural gas consisting of pure methane enters a furnace along with a 50% excess air at 25 degrees C. Assuming an adiabatic combustion, estimate the theoretical flame temperature
How much heat is liberated when 5kg of coal is burned if the coal is 96.2 % carbon by mass and the other materials in the coal do not react? Delta H of carbon is -394 KJ/mol
The enthalpy change for the reaction below at 25oC is -1,850 kJ (per mole of C9H20). What is the internal energy change for the reaction at 25oC
If you were to prepare a 1.00 solution of beginning with water at 21.5, what would the final temperature of the solution be (in ). Assume that the specific heats of both pure and the solution are the same, 4.18.
calculate how many moles of the product form when 0.040mol of K completely reacts. Assume that there is more than enough of the other reactant. 4K(s)+O2(g)?2K2O(s)
The frequency of the middle G note on a piano is 392.00 Hz. What is the wavelength of this note in centimeters? The speed of sound in air is 343.06 m/s. Explain steps.
For the titration of 45.0 mL of 0.0100 M Sn2 by 0.0500 M Tl3 in 1 M HCl, using Pt and Ag | AgCl electrodes:(a) What is the balanced titration reaction
When she introduced 0.177 moles of NOBr(g) into a 1.00 Liter container, she found the equilibrium concentration of Br2(g) to be 1.76E-2 M. Calculate the equilibrium constant, Kc, she obtained for this reaction. Kc =
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