Sodium nitride has the formula Na3N, What is the formula for magnesium nitride?
a) Mg2N c) Mg3N2
b) Mg3N d)
What is the mass of one mole of aluminum sulfate, Al2(SO4)3?
a) 630 g c) 273 g
b) 342 g d) 123 g
Which set of coefficients balances the equation for the complete combustion of ethane, C2H6?
_C2H6 + __027_002 + _H20
a) 1,3,2,3 c) 2,6,4,5
b) 1,6,2,6 d) 2,7,4,6

According to the kinetic-molecular theory, what happens to a liquid when it is transferred from one container to another? the volume and the shape stay the same. the volume increases to fill the new container, but the shape stays the same. the volume stays the same, but the shape changes to fit the new container. the volume and the shape change to fill the new container.

The small bags of silica gel you often see in a new shoe box are placed there to control humidity. despite its name, silica gel is a solid. it is a chemically inert, highly porous, amorphous form of sio2. because water vapor readily adsorbs onto the surface of silica gel, it acts as a desiccant. despite not knowing mechanistic details of the adsorption of water onto silica gel, from the information provided you should be able to make an educated guess about the thermodynamic characteristics of the process. predict the signs for δg, δh, and δs for the adsorption of water.

Find the missing probability in the table below a.0.10 b.40 c.0.80 d. 0.20