What fuels are the main source during short, intense energy bursts of exercise?

Molecular models of two different substances are shown below. in the molecule on the left, the oxygen atom pulls on electrons more strongly than the hydrogen atoms. in the molecule on the right, the two oxygen atoms pull on the shared electrons with the same strength. water molecule, h,o oxygen molecule, oz when the two substances are put in the same container, they do not attract each other. why does this happen? a. they both contain oxygen. b. one is polar and one is nonpolar. c . they are both polar. d. they contain different elements.

Which chemical equation is unbalanced? which chemical equation is unbalanced

How would you describe the the organisms in the second row of model 1 that are connected to the parents by a line