Using the following values of pKb, select the strongest acid from those listed in the answers. a. C5H5N (pKb = 8.75) b. N2H4 (pKb = 5.77) c. C6H5NH2 (pKb = 9.37) d. NH3 (pKb = 4.75) e. C2H5NH2 (pKb = 3.19)

What is the relationship between the internal energy of a substance and its particle movement?

What is the importance of the coefficients in a balenced chemical reaction.

Click on the box to choose which compound has a greater difference in electronegativities of its members. Use the chart of electronegativities in lesson 5 of this unit or your knowledge of general trends of electronegativities within families.

What is the estimated effective nuclear charge, Z eff, experienced by an electron in a 3p orbital of a chlorine atom?

For the skeletal chemical equation LaC2 (g) + H2O (ℓ) → La (OH) 3 (s) + C2H2 (g) + H2 (g) what is the coefficient of C2H2 in the balanced equation?

What is the mole ratio of N2 + 3H2 Right arrow. 2NH3

In a second-order reaction (one that is second order in one reactant), cutting in half the concentration of that reactant will have what effect on the reaction rate? A) The reaction rate will remain the same. B) The reaction rate will double.

How many moles of nitrogen gas are in a 10.0 L container at STP? a. 0.45 moles b. 22.4 moles c. 10.0 moles d. 6.02 x 1023 moles

In your own words, explain John Martin s theory about iron dumping.

List four common signs that a chemical reaction has occurred.