Two vessels A 100cm3 capacity and B 300cm3 capacity were separated by a tap. A is filled with a gas at 748kPa and B is evacuated until the pressure inside it was negligible. Assuming the temperature is constant, calculate the pressure in the flask when the tap is opened allowing gas to flow from A to B.​

Read these sentences from the text. near the equator, the tropics receive the most rain on a consistent basis. as a result, the fresh water falling into the ocean decrease the salinity of the surface water in that region. [. .] . . as the salt content of sea water increases, so does its density. what can you infer about how rain affects the density of surface water near the equator?

Use the periodic table to determine the electron configuration of dysprosium (dy) and americium (am) in noble-gas notation.

This chart lists four kinds of polymers and their sources. what can be known about all four polymers, despite their differences? they come from living things. they share ionic carbon bonds. they are at least 100 monomers long. they are made of repeating subunits.