Protein provides 4 calories per gram. Mary is on a diet that requires her to eat at least 40 grams of protein each day. She’s eaten 152 calories of protein today. How much more protein does Mary need to eat to meet her goal?

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.

If 1.8 l of water is added to 2.5l of a 7.0 m koh solution, what is the molarity of the new solution

What is the compound name for the formula [ru(en)2cl2]2+ and [co(en)cl2br]-