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Describe all types of bonding that you would expect to exist in each of the following compounds. If significant mixed character or multiple types of bonding exists within the solid explain and give the % ionicity of the bond if applicable.
(a) a silicon carbide crystal(b) graphite(c) potassium fluoride (KF)(d) an alloy composed of 90%Al, 7%Si, 3%Mg(e) zirconia (ZrO2)(f) polyethylene(g) ice
Heat is lost to the styrofoam calorimeter. Assuming a 6.22 C temperature change for the reaction of HCl(aq) with NaOH(aq), calculate the heat loss to the inner 2.35-g styrofoam cup. The specific heat of styrofoam is 1.34 J/gC.
Calculate the fraction of atom sites that are vacant for silver at 695°C. Assume an energy for vacancy formation
What is the emf for this cell when [Fe3+] = 0.50M, PH2 = 0.25 atm, [Fe2+] = 0.010M and the pH in both compartments is 4.00
A sample of nitrogen gas had a volume of 500. mL, a pressure in its closed container of 740.0 torr and a temperature of 25.0°C.
A 12.0 gas cylinder has been filled with 5.40 moles of gas. You measure the pressure to be 5.00 atm. What is the temperature inside the tank? Express your answer numerically in degrees Celsius.
The standard molar enthalpy change for this reaction is -1.3MJ. What is the enthalpy change when 6 moles of octane are combusted?
rom your initial observations, you suspect that the two beakers contain the same compound. Describe, in general terms, some experiments in a laboratory that you could do to help prove or disprove that the beakers contain the same compound.
How many milliliters of a .250 M sulfuric acid solution would be required to completely react with 2.398 grams of solid aluminum hydroxide?
How should a professional emergency responder be concerned about the following routes of radiation exposure for a person on scene and a person downtown?
An experiment produces 15.0 grams of hydrogen for every 71.0 grams of oxygen used. How many grams of oxygen will you need to produce 6.0 g of hydrogen
what minimum number of packages of buns, packages of patties, and jars of pickles do you need, respectively? Express your answer as three integers separated by commas.
How long will it take 10.0 mL of oxygen gas to effuse through a porous barrier if it has been observed that 81.7 minutes are required for 10.0 mL of Cl2 gas to effuse through the same barrier?
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