In a titration curve, which of the following is plotted versus the volume of titrant added? a. pH
b. pk.
c. the volume of acid or base already in solution O
d. none of the above

Drive down any three characteristic of modern periodic table

Harry lives in a city, and he has a lung condition known as asthma. on certain days, harry has to stay inside because pollutants in the air make it difficult for him to breathe. which of these pollution sources are nonpoint sources that might bother harry if he goes outside? choose the two that apply.

Now look at the segment of the graph between the two data points marked with black squares. describe how the boiling point and melting point plots behave between these points. be as specific as possible.