Which formula is an ionic compound?

An ionic compound is usually formed when both positive ions called a cation and a negative ion called an anion share electrons to create a bond. Therefore, you derive the correct formula of an ionic compound by canceling out the positive and negative charges of the ions.  

Explanation:

The formula of an ionic compound is achieved by following the steps below.

Step one.

Step two.

Step three.

Step four.

he uptake of drugs from the intestine is often strongly influenced by diffusion. for example, consider a water-insoluble steroid for treating inflammation that is solubilized in aggregates of detergent molecules, called micelles. these micelles, aggregates of 80 soap molecules, have a molecular weight of 24,000, a diameter of 2.6 nm, and a charge of -27. the positively charge ions (counterions) in this system are na".

i believe the answer is 5,000