When the ethane and propane components of natural gas are cracked, two new compounds are formed which are essential monomers used in making plastics. These substances are ________.
Fill in the blank(s) with correct word
Question 2
Which of the following is a statement of Hess's law?
A) If a reaction is carried out in a series of steps, the H for the reaction will equal the sum of the enthalpy changes for the individual steps.
B) If a reaction is carried out in a series of steps, the H for the reaction will equal the product of the enthalpy changes for the individual steps.
C) The H for a process in the forward direction is equal in magnitude and opposite in sign to the H for the process in the reverse direction.
D) The H for a process in the forward direction is equal to the H for the process in the reverse direction.
E) The H of a reaction depends on the physical states of the reactants and products.
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