What type of elements are most likely to form more than one type of ion

Solid sodium chloride does not conduct electricity, yet when it is dissolved in distilled water the solution is an excellent conductor. what is the best explanation for this change?

In the lab, ammonia was mixed with water to form ammonium hydroxide. What is/are the reactant (s) ? A. water and ammonia B. ammonia C. ammonium hydroxide D. water and ammonium hydroxide

In a titration 5.0 mL of a 2.0 M NaOH aq solution exactly neutralizes 10.0 of an HCL aq solution what is the concentration of the HCL (aq) solution

What, if any, is the relationship between atomic radius, ionization energy and electronegativity?

An atom of gold has a mass of 3.271*10^-22g. How many atoms of gold are in 5.00 g of gold?

Aluminum oxide, Al2O3, is used as a filler for paints and varnishes as well as in the manufacture of electrical insulators. Calculate the number of moles in 47.51 g of Al2O3.

What volume of 2.00 m must be added to 150.0 ml of 1.00 m chloroacetic acid to produce a buffer solution having a ph of 3.30?

Which microscope came out first

Which exerts greater pressure on the floor-standing flat-footed or standing on tiptoe? on tiptoe, because the force acts over less area on tiptoe, because the force acts over more area flat-footed, because the force acts over more area flat-footed,

1. Sara tells Michael she is 160 centimeters tall, while Michael says he is 60 inches tall. If there are 2.54 centimeters in an inch, who is taller