What effect does a catalyst have on a system in equilibrium? the forward reaction slows down, and the reverse reaction speeds up. the system is unaffected. the forward reaction is favored. the reverse reaction is favored.

Which of the following elements is a representative element? a. chromium (cr) b. aluminum (al) c. mercury (hg) d. silver (ag)

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.

Complete each row of the table below by filling in the missing prefix or missing exponent.