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How are the following aspects of a reaction affected by the addition of a catalyst? 1) activation energy of the reverse reaction A) Increased B) Decreased C) Not affected 2) Rate of the forward reaction A) Increased B) Decreased C) Not affected 3) Rate of the reverse reaction A) Increased B) Decreased C) Not affected 4) Activation energy of the forward reaction A) Increased B) Decreased C) Not affected
Indicate what precipitates, if any, form when solutions of each of the following are added to a solution containing the Group I cations.
What is the total quantity of heat required to do this? The melting point of Pb is 327.4 degrees celsius; its heat of fusion is 4.774 kJ mol-1; its average heat capacity in the temperature range from 51 to 327.4 deg. celsius is 0.134 J g-1K-1.
How much heat is evolved in converting 1.00 mol of steam at 130.0 C to ice at -50.0 C? The heat capacity of steam is 2.01 J/g*C and of ice is 2.09 J/g*C.
arrange the following in increasing order of mass.
Calculate the mass of nitrogen dissolved at room temperature in an 77.0 home aquarium. Assume a total pressure of 1.0 and a mole fraction for nitrogen of 0.78.
At 2000 degrees celcius the equiblibrium constant for the reaction 2NO to N2 and O2 is Kc = 2.4 x 103. If the initial concentration of NO is 0.200M, what are the equilibrium concentrations of NO, N2, and O?x?
The addition of 6 g of salt to a sample of pure water causes its freezing point to be reduced from 0°C to -1.5°C. After an additional amount of salt is dissolved in the solution
How many mmols of Tris would you need to prepare 100 mL of a 100 mM Tris solution
The following is a first order reaction with a rate constant of 2.98*10>-3s-1: SO2CL2>>>>SO2+CL2. What is the half life for the reaction?
calculate the energy needed to raise the temperature of 180.0g of water from 10.0 C to 40.0 C. The molar heat capacity for water is 75.3 J/k*mol
How much heat in kilojoules is required to warm 10.0 g of ice, initially at -10.0^\circ C, to steam at 110^\circ C. The heat capacity of ice is 2.09 {\rm J}/{\rm g} ^\circ {\rm C} and that of steam is 1.84
formulate a complete mechanism for the thiamine-catalyzed conversion of benzaldehyde to benzoin
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