_2__Cu + __1_O2 ---> _2__CuO If you have 15.0 moles of copper reacting with 25.0 moles of oxygen, and you go into the lab and perform the experiment and you actually produce 12.75 moles what is your percent yield?

a 85%
b 80%
c 90%
d 75%

How many electrons does silver have to give up in order to achieve a sido noble gas electron configuration

Which of the following is not true about the atomic model of substances?

Magnesium is the limiting reactant in this experiment. calculate the theoretical yield of mgo for each trial. trial 1: trial 2: data mass of empty crucible with lid trial 1: 26.688 trial 2: 26.681 mass of mg metal, crucible, and lid trial 1: 26.994 trial: 2 26.985 mass of mgo, crucible, and lid trial 1: 27.188 trial 2: 27.180