1. Calculate the molar mass of 0.28 moles MgF2 2. Calculate the number of moles in 55g H2O

3. Calculate the number of moles in 1222g I2

4. Calculate the number of moles in 4.8g He

5. Calculate the number of moles in 3300g UF6

What is the lowest number energy level where a d sublevel is found

As we move from left to right across the periodic table, what is the general trend? a) atomic radii increase. b) electronegavitiy decreases. c) nuclear shielding increases. d) metallic character decreases.

2-bromo-2-methylbutane undergoes an e1 elimination reaction in the presence of ethanol. in the next reaction only one of the possible products is represented. although the product shown is not the major product of the reaction, notice that there is more than one way it can be produced. complete the mechanism and draw the missing substances.