Metal x combines with fluorine to form XF2. what compound does it form with the sulfate ion? A. XSO4
B. X2SO4
C. X(SO4)2

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.

What is the mass of 0.46 mol of mgcl2

How many mmols of tris-hcl are there in 100 ml of a 100 mm tris-hcl buffer solution at ph 8.1? note that the 100 mm refers to the sum of tris and tris-hcl concentrations?