If 21.88 ml. of a solution of Ba(OH)2 requires 18.68 ml. of a 2.893 M solution of HNO3 for
complete titration. what is the molarity of the
Ba(OH)2 solution?
Answer in units of M.

Use the table to identify the phase and phase changes of the elements under the given conditions. write the name of the substance, phase, or phase change

What type of reaction is shown below? check all that apply. 2h2o2 → 2h2o + o2 synthesis decomposition combustion

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.