What factor does not affect the rate of chemical reaction?
The enthalpy change of the reaction
In the energy digram for a chemical reaction is shown below. Which letter correctly represents the activation energy for the catalyzed reaction in the forward direction?
C
The rates of many reactions approximately double with temperature increase of 10 degrees. This is best attributed to a doubling of the fraction of molecules that have the energy needed for reaction
Reactions between aqueous solutions of sodium thiosulfate and acid can be followed by timings the appearance of the solid sulfur that is produced. The time required for the appearance of the sulfur would increase by the change of the following diluting the solution.
Correct balancing of the equation
CaC03 (s) + 2HCl (aq) ----> CaCl2 (aq) + H20 (l) + C02 (g)
The enthalpy change of the reaction
In the energy digram for a chemical reaction is shown below. Which letter correctly represents the activation energy for the catalyzed reaction in the forward direction?
C
The rates of many reactions approximately double with temperature increase of 10 degrees. This is best attributed to a doubling of the fraction of molecules that have the energy needed for reaction
Reactions between aqueous solutions of sodium thiosulfate and acid can be followed by timings the appearance of the solid sulfur that is produced. The time required for the appearance of the sulfur would increase by the change of the following diluting the solution.
Correct balancing of the equation
CaC03 (s) + 2HCl (aq) ----> CaCl2 (aq) + H20 (l) + C02 (g)
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