What are the Brønsted-Lowry bases in this reaction? NH3(aq) + H2O(l) ⇌ NH4+(aq) + OH–(aq)

The pH of a 0.050 M aqueous solution of ammonium chloride (NH4Cl) falls within what range?

Which process would be predicted to have ΔS < 0?

The activation energy for the reaction of               2NO2(g) 

On the energy diagram, point A denotes the _____, a _____ energy transition state where bonds may break and/or form.    

Which substance would have the greatest standard molar entropy?

How much time (in s) is needed to deposit 0.0125 g of chromium from a solution of Cr(NO3)3 with a current of 1.50 A?  The molar mass of chromium is 52.00 g∙mol–1.

This is a reason for A and B to have a statistically insignificant correlation (association), even though there actually is a causal relationship between them: “A” is a necessary but not sufficient condition for B.

Match the appropriate distribution to each of the descriptions below. Note: Some items may have more than one correct answer, but you only have to provide one of the correct ones. Also, some distributions may be used more than once while others may not be used at all.

If the data follow a multivariate normal distribution, an informal guideline is that an outlier is a point with a Mahalanobis-distance greater than 2.