Criticize the following techniques and give the corrective action(s): (a) Refluxing a mixture that contains diethyl ether using a Bunsen burner.
(b) Refluxing a mixture that contains a large amount of toluene using a hot water bath.
(c) Using a mercury thermometer that is inserted into an aluminum block on a hot plate.
(d) Running a reaction with tert-butyl alcohol (2-methyl-2-propanol) that is cooled to 0°C
in an ice bath.

Does anyone know a lot about how to: - calculate mass of magnesium metal - calculate the actual yield of magnesium oxide - calculate the theoretical yield of mgo - calculate the percent yield of mgo - determine the percent yield of mgo - determine the average percent yield of mgo i had to do an online lab and its asking these questions but i have no idea where to start or how to be able to find these things. i can post the chart of the data from the lab or if you can tell me exactly how i can find each.

What will most likely happen when two bromine atoms bond together?

How many protons, electrons, and neutrons are in each of the following isotopes? a. zirconium-90 b. palladium-108 c. bromine-81 d. antimony-123