In these chemical equations, each letter represents a different element. Which equation is balanced?
A. EF + G H
EH + 2GF
B. 2EF3 + 3G, H - 6GF + EH3
C. 3E2F+G2H3 - 3EH + GF
D. 2EF + 3G2H
3GF+E H3

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.

How many moles of sulfur dioxide are produced when 4.38 moles of oxygen completely react with iron (iv) sulfide

Which statement best describes the function of enzymes?