If 40. ml of 0.20 M NaOH is needed to titrate 50. ml of HNO3, what is the molarity of the HNO3?

The number at the end of an isotope’s name is the number.

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.

How many moles are in 123.0 grams of kclo4?