- The abundance of which elements define the "mafic" minerals; and "felsic" minerals?

Discover Questions

Can someone help me, I find this problem confusing? Calculate the volume of 2.00 mol of liquid water at a temperature of 20 ∘C (at which its density is 998 kg/m3).? Pi in base 12 starts out 3.1848. Is this more or less accurate than the base 10 value 3.1416? Do astronomers also know and study about aliens/ufos and other life out there? What is the HCl concentration if 42.8 mL of 0.100 M NaOH is required to titrate a 30.0 mL sample of the acid?