Which of the following is an electrolyte?

a. NaCl
b. AgBr
c. SrSO4
d. CaCO3

Which statement describes the phase change that occurs when dry ice is placed in an open container at room temperature?

The rate constant for the reaction below is 6.2 x 10−5 mol l−1 s −1. if the initial concentration of a is 0.0500 m, what is its concentration after 115 s?

Which would freeze at a higher temperature: the great salt lake or lake tahoe? a. lake tahoe would freeze at a higher temperature. b. the great salt lake would freeze at a higher temperature. c. both lakes would freeze at the same temperature.