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CH4(g) + O2(g)= CO2(g) + H2O(l) is this an exothermic reaction? If 100 g of CH4 is burned, calculate the heat exchange
Dinitrogen monoxide decomposes into N2 and O2. Suppose you have a reaction flask that initially contains only N2O at a pressure of 2.10 atm.
A single crystal of a metal is oriented for a tensile test such that its slip plane normal makes an angle of 65.5° with the tensile axis. Three possible slip directions make angles of 30°, 48°, and 78° with the same tensile axis.
What is the mole fraction of ethanol in a solution made from mixing 299 grams of ethanol (C2H5OH) and 360 grams of water? (Round your answer to 2 places after the decimal.)
A solution made by dissolving 1.50g of solute in 25.0 mL of H2O at 25 degrees C has a boiling point of 100.45 degrees C. What is the molar mass of the solute if it is a nonvolatile non electrolyte and the solution behaves ideally
When 99% of the glycine is in its -NH3+ form, what is the numerical relation between the pH of the solution and the pKa of the amino group
What conditions are used in the Haber process to enhance the yield of ammonia. Explain why each condition affects the yield in terms of the Le Chatelier principle
Radio waves travel at the speed of light, which is 3.00 x 108 m/s. How many kilometers will radio messages to outerspace travel in exactly one year?
Specified the information: Define the hybridization of each carbon in the benzene ring is sp2 with delocalized electrons.
For the following reaction, label the acid, base, conjugate acid, and conjugate base. Given the following values for Ka, circle the stronger acid and stronger base and predict whether the equilibrium is toward the reactants or products.
Balance each of the half reactions in acidic solution a)Cu(s)>Cu^2+(aq) b)SO4^2-(aq)>SO3^2-(aq) c)BrO3^-(aq)>Br^-(aq) d)IO3^-(aq)>I2(s)
the NaOH solution is required to reach the endpoint in the titration of a 7.248 sample of vinegar. What is the mass percent of acetic acid in this vinegar sample?
A 14.7-g ice cube is placed into 324 g of water. Calculate the temperature change in the water upon complete melting of the ice. Determine how much heat is absorbed by the melting ice and then use q = mC?T to calculate the temperature change of the..
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