CH 19: Which one of the following processes produces a decrease of the entropy of the system?

Which of the following expressions is the correct equilibrium-constant expression for thereaction below? CO2 (s) + H2O (l) H+ (aq) + HCO3- (aq)

Which substance is the oxidizing agent in the following reaction?Fe2S3 + 12HNO3 → 2Fe(NO3)3 + 3S + 6NO2 + 6H

How many seconds are required to produce 5.00 g of aluminum metal from the electrolysis of molten with an electrical current of 15.0 A? SHOW WORK FOR THIS QUESTION

The half-life of 131Iodine is 0.220 years. How much of a 500.0 mg sample remains after 24 hours? SHOW WORK FOR THIS QUESTION

If the reaction quotient Q for a reaction is greater than the value of the equilibrium constant K for that reaction at a given temperature,  _______ must be converted to  _______ for the system to reach equilibrium.

What is the pOH of an aqueous solution at 25.0 °C that contains            2.50 × 10-4 M hydronium ion? SHOW WORK FOR THIS QUESTION

CH 16: Of the following acids, ________ is not a strong acid.

Which substance is the oxidizing agent in the following reaction?Fe2S3 + 12HNO3 → 2Fe(NO3)3 + 3S + 6NO2 + 6H

Determine the Ksp for magnesium hydroxide, Mg(OH)2, where the solubility of Mg(OH)2 is 1.4 x 10-4 M. SHOW WORK FOR THE QUESTION