Why is it necessary for the radio of atoms to be expressed as the distance between the nuclei of the two identical atoms bonded together?

Ibeg i need 20. a reaction produces 4.93 l of oxygen, but was supposed to produce 1 mol of oxygen. what is the percent yield?

According to coulomb's law, how would the electrical force between particles change if the product of their electrical charge increased?

Skills of homo sapiens were found an excavation. the skulls were preserved because the bodies were frozen. so, these fossils are (blank) fossils. the image shows the evolution of skulls beginning 2 to 3 million years ago. based on the image, modern human skulls(blank) ape skulls.