_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%

If a reactant was removed, did the new equilibrium system shift to make more reactants or more products?

Geothermal energy for industrial use is available almost anywhere. a. true b. false

Which of the following statements about hybrid orbitals is or are true? choose all that apply. choose all that apply. under sp2 hybridization, the large lobes point to the vertices of an equilateral triangle. after an atom undergoes sp hybridization there is one unhybridized p orbital on the atom. the angle between the large lobes of sp3 hybrids is 109.5∘