During a lab experiment, 48.62 grams of magnesium reacted with 32.00 grams of oxygen to produce magnesium oxide. What is the empirical formula for magnesium oxide?

The name of the ion, s2-, is: sulfurous ion sulfide ion sulfur ion sulfate ion

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

Which buffer would be better able to hold a steady ph on the addition of strong acid, buffer 1 or buffer 2? explain. buffer 1: a solution containing 0.10 m nh4cl and 1 m nh3. buffer 2: a solution containing 1 m nh4cl and 0.10 m nh3