I don't have much time left to answer this question I would really appreciate the help, thank you. Bob decided to make some pancakes, but the stove in the house was not very efficient, resulting in 7.81 grams of carbon dioxide produced, when a theoretical yield for the burning of methane should have been 9.54 grams. Find the percent yield.

Ibelieve the answer is d. titaniumhope my answer has you : )

Vander waals forces are inter molecular bonds that exist within molecules of the same substance. a water molecule is made up of oxygen and hydrogen atoms which share electrons between each other. the vander waals forces are forces that exist between multitude of different  molecules of water. dipole dipole forces is the type of vander waals force that exist in water. the oxygen atom which is more electronegative pulls the shared electron closer to itself thus generating a partial negative charge while the hydrogen acquire a partial positive charge. these two different charges causes attraction to occur in water molecules.