Consider this equilibrium: HCO3- + H2PO4-HPO42- + H2CO3.

What are the Brønsted-Lowry acids in this equilibrium?

A. HCO3- and H2CO3
B. HCO3 and HPO42-
C. H2PO4! and H2CO3
D. H2PO4' and HPO4-
E. HCO3 and H2PO4!-

Which of the following substances is the most soluble in water? a. sodium chloride b. methane c. bromine d. carbon

Drag each pressure unit with the corresponding number to describe standard atmospheric pressure

The equilibrium constant kc for the reaction 2 nocl(g) → 2 no(g) + cl2(g) is 0.453 at a certain temperature. a mixture of nocl, no, and cl2 with concentrations 1.30, 1.20, and 0.600 m, respectively, was introduced into a container at this temperature. which of the following is true? 1. no apparent reaction takes place. 2. [cl2] = 0.30 m at equilibrium. 3. nocl(g) is produced until equilibrium is reached. 4. [nocl] = [no] = [cl2] at equilibrium. 5. cl2(g) is produced until equilibrium is