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How much energy (heat) is released when 0.9 moles of H2 reacts with 0.5 moles of Cl2 to create HCl(g) if the ΔHrxn = -184.6 kJ?
Given the following data table of average bond enthalpies, estimate the ΔH^rxn for the reactions 2H2+O2-- 2H2O. What is the hybridization of xenon in each of your Lewis resonance structures?
At 0.0oC, if the volume of air is 2.6 mL and the pressure of the atmosphere that day is 815 mmHg, what is the number of moles of air?
Calculate the change internal energy for a system that is giving off 45.0 kJ of heat and is performing 855 J of work on the surroundings.
For the given reaction, 2 HCl (aq) + Ba(OH)2 (aq) BaCl2 (aq) + 2 H2O (l) 73.0 grams of HCl are allowed to react with 342 grams of BaCl2.
describe the nature and characteristics of pcbs. why are they of importance to an ehamps or fs professional who
What is the chemical formula of the salt produced by the neutralization of nitric acid with calcium hydroxide?
At 5096 oC the equilibrium constant for the reaction: 2 NO(g) N2(g) + O2(g) is KP = 2.93. If the initial pressure of NO is 0.00735 atm, what are the equilibrium partial pressures of NO, N2, and O2
How many grams of methane [CH4(g)] must be combusted to heat 1.00 kg of water from 25.0°C to 90.0°C, assuming H2O(l) as a product and 100% efficiency in heat transfer?
The radius of a gold atom is 144 pm. How many gold atoms would have to be laid side by side to span a distance of 2.63 mm?
Consider the following equilibrium 2SO2 + O2 yields 2SO3 The equilibrium cannot be established when is/are placed in a 1.0L container
Use the ideal gas law to calculate the concentrations of nitrogen and oxygen present in air at a pressure of 1.0 and a temperature of 298 .
Substituents on an aromatic ring can have several effects on electrophilic aromatic substitution reactions. Substituents can activate or deactivate the ring to substitution,
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