Use the standard enthalpies of formation for the reactants and products to solve for the ΔHrxn for the following reaction. (The ΔHf of HCN is 108.9 kJ/mol, AgCl is -127.068 kJ/mol, HCl is -167.159 kJ/mol and AgCN is 146.0 kJ/mol.)

HCl (aq) + AgCN (s) HCN (aq) + AgCl (s)

ΔHrxn =

The reaction is

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explanation:

in cartography, a contour line (often just called a "contour") joins points of equal elevation (height) above a given level, such as mean sea level. a contour map is a map illustrated with contour lines, for example a topographic map, which thus shows valleys and hills, and the steepness or gentleness of slopes.

explanation:

the answer is a and have a great day