10 POINTS PLZ HELP!! Pyridine is a base that is added to ethyl alcohol to make it more poisonous and thus unsuitable for drinking. Ethyl alcohol treated in this manner is said to be denatured. The Kb for pyridine is 1.7 x 10-9. Find the pKb for pyridine.

The atomic number, or number, is the described as the number of in the nucleus of an chemical element.

Calculate the estimated density of each ball. use the formula d = m/v where d is the density, m is the mass, and v is the volume. record your calculations in table a of your student guide. given that the density of water is 1.0 g/cm3, make a prediction about whether each ball will float in water. record your prediction in table a. what is the estimated density of the table tennis ball? record your answer to the nearest hundredth

Which statement best describes what happens when molecular compounds melt