The rate law for the decomposition of phosphine (PH3) is Rate= [PH3]/t = k [PH3]

It takes 140s for 1.00 M to decrease to 0.200 M. How much time is required for 2.00 M to decrease to a concentration of 0.350 M?

Asolution contains 225 g of sodium chloride, nacl, dissolved in enough water to make a 0.25 l of solution. what is the molarity of the solution?

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.

50 points! need answer asap. what type of organic compound contains the following functional group? (2 points)