Name the compound re2o5. use a roman numeral after the name of the cation

Which type of reaction always has an element and a compound as reactants

What is the ima of the 1 st class lever in the graphic given? 2 3 0.5

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.