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Draw Lewis structures to determine which of the following compounds exhibit resonance. Enter the letters corresponding to all those compounds which exhibit resonance. (If you find that choices A, C, and F all have resonance and the others do not, for example, you would enter ACF as your answer. Make sure the letters you enter are in alphabetical order, with no spaces or commas separating them.) A. N2O4 B. NO2- C. SF4 D. CO2 E. NO3- F. NO2+
what metal cations form sulfide precipitates in basic solution in qual scheme after the above cations have been removed. Qualitativley explain, why the pH of the sulifide solution effects which cations precipitate.
What is the absolute humidity of the cooled air? and What is the minimum mass flow rate of water into the swamp cooler?
When concentrated sulfuric acid (18.0 M) is added to sodium chloride, hydrogen chloride gas is formed.
You have 500.0 mL of a buffer solution containing 0.20 M acetic acid (CH3COOH) and 0.30 M sodium acetate (CH3COONa). What will the pH of this solution be after the addition of 20.0 mL of 1.00 M NaOH solution? [Ka = 1.8 ´ 10-5]
What would be the potential of the Cu-Zn cell be if the concentration of Cu2+ was 1.00M while the concentration of Zn2+ was 0.60M
In the following conditions calculate the moles of hydrogen and the pressure in each flask where the volume is negligible. Each flask is originally 275K with .455 mols of hydrogen gas and .7atm of pressure. Then one flask is heated to 500K while t..
The heat of formation of MnO is -385 kj/mol and that of Al2O3 is -1670 kj/mol. What is the heat of the reaction in kj
a. A 0.1044 gram sample of an unknown monoprotic acid required 22.10 mL of 0.0500 M NaOH to reach the end point. What is the molar mass of the unknown?
What is the adipic acid production from cyclohexanol and cyclohexanone reaction by products
What is the molar concentration of As(III) in a solution if 28.95mL of 0.120 M KBrO3 is needed to titrate 54.65 mL of the As(III) solution? The balanced equation is
The rate constant of a reaction is 7.4 x 10^-3 s-1 at 25 Celsius, and the activation energy is 33.6 kJ/mol. What is k at 75 Celsius?
calorimetry can be used to find heats of combustion. suppose a calorimeter helps someone to determine that 4032 kj of heat is released during the combustion of 88.0 grams of propane, C3H8 (44.0 g/mol).
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