Which would most likely be joined by an ionic bond?
a) a positive metal ion and a positive nonmetal ion
b) a positive metal ion and a negative nonmetal ion
c) a negative metal ion and a positive nonmetal ion
d) a negative metal ion and a negative nonmetal ion

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 forms when chemical reactions combine pollution with sunlight?

Name the element in group 17, period 2. (periodic table)