6. which of the following statements is true?
A. in an exothermic reaction, the energy of the products is the same as the energy of the reactants.
B. in an endothermic reaction, the energy of the products is the same as the energy of the reactants.
C. in an exothermic reaction, the energy of the products is less than the energy of the reactance.
D. in an endothermic reaction, the energy of the products is less than the energy of the reactants.
7. which of the following is correctly written thermochemical equation?

Acrystal that absorvd water from air is (blank)a. aqueousb. homogenousc. hygroscopicd. efflorescent

Calculate the concentration of all species in a 0.165 m solution of h2co3.

Steam reforming of methane ( ch4) produces "synthesis gas," a mixture of carbon monoxide gas and hydrogen gas, which is the starting point for many important industrial chemical syntheses. an industrial chemist studying this reaction fills a 1.5 l flask with 3.5 atm of methane gas and 1.3 atm of water vapor at 43.0°c. he then raises the temperature, and when the mixture has come to equilibrium measures the partial pressure of carbon monoxide gas to be 1 .0 atm. calculate the pressure equilibrium constant for the steam reforming of methane at the final temperature of the mixture. round your answer to 2 significant digits.