Convert 3.25 x 1022 formula units of Naci to moles of Naci. How many moles is 94.7g Ca3(PO4)2?
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Which common material is an example of a polymer? (25 pts) a. steel b. plastic c. petroleum d. rubbing alcohol

What effect would average population growth have on land usage? a. urban use of land would rise to more than 30 percent of available land. b. industrial use of land would rise to more than 30 percent of available land. c. the percentage of available land used as cropland would stay the same. d. cropland would fall to about 10 percent of available land.

The chemical formula for emerald is be3al2(sio3)6.an emerald can be decided as