Find the coefficient of oxygen (O2) as an expression of x and y. Then write the balanced chemical for the combustion of CxHy in terms of x and y. (Hint: Begin by writing the equation when the coefficient to the hydrocarbon is one Then extend the solution for when it is 2.) When can you simplify your expression? When will your expression not produce whole number coefficients?

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 is the ima of the 1 st class lever in the graphic given? 2 3 0.5

According to periodic trend, which of the following most likely has the highest ionization energy? kr be ni sc