For which of the following reactions is the enthalpy change equal to the second ionization energy of nitrogen?

Which statements describe polyatomic ions? check all that apply. polyatomic ions have many charges. polyatomic ions have one overall charge. polyatomic ions repel other ions to form ionic bonds. polyatomic ions attract other ions to form ionic bonds. polyatomic ions are made up of only one type of atom. polyatomic ions are made up of two or more types of atoms.

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

An experimental procedure requires a 10 ml of acid to be dissolved