What is the molality of a solution that contains 74.2 g of 1,4-dichlorobenzene (CH4Cl2) in 492 mL of carbon tetrachloride (CC14)? The density of CCl4 is 1.60 g/mL.

When a spring is compressed, the energy changes from kinetic to potential. which best describes what is causing this change?

Why does his teacher ask him to balance the equation by including the correct coefficient

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.