Rank each of the molecules below in order of the shortest to the longest sulfur oxygen bond length a. SO2 b. SO3^2- c. SO4^2-

Imagine that you push on a large rock. at what point does your effort change the rock’s mechanical energy?

Ants live on acacia trees in south america. the ants feed on sugars secreted by the trees. the trees provide room for the ants to live. the ants sting any other insect or animal that comes to eat the trees. what type of relationship is this?

Select all of the statements which are true. electrons are located in shells or orbits around the atom. electrons orbit slowly around the atom. electrons travel in one flat path around the nucleus of an atom. the valence of an atom is determined by the number of electrons in the atom's outermost shell.