6. Where do most hurricanes that
affect the U. S. occur?
a. The Pacific Ocean
b. The Atlantic Ocean
c. The Indian Ocean
d. The Arctic Ocean

Calculate the number of molecules present in 0.750 mol of mgo.

The element chlorine has two stable isotopes, chlorine-35 with a mass of 34.97 amu and chlorine-37 with a mass of 36.95 amu. from the atomic weight of cl = 35.45 one can conclude that:

Consider the following system at equilibrium. caco3(s) = ca2+(aq) + co32-(aq) the addition of which compound will cause a shift in equilibrium because of a common ion effect? occia co2 cuso4 na2co3