Which statement is true about ionic compounds? solid ionic compounds are good conductors of electricity. ionic compounds have varying solubilities in water. ionic compounds have very low melting points. ionic compounds are very easy to bend.

The statement which is true about ionic compounds is: B. Ionic compounds have varying solubilities in water.

An ionic compound can be defined as a crystalline solid (chemical compound) that contains neatly packed and oppositely charged ions, which are typically bonded through electrostatic forces.

In Chemistry, some examples of ionic compounds are:

Sodium chloride.Sodium oxide.Lithium chloride.Aluminum chloride.Potassium bromide.

Solubility refers to a measure of how readily a substance or chemical compound dissolves in a solvent to produce (form) a solution.

Hence, a substance or chemical compound is generally considered to be soluble if it is able it dissolve completely in a solvent.

Basically, the solubilities of ionic compounds in water tends to vary because of the difference existing between its hydration energy and its lattice energy.

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The answer is "Ionic compounds have varying solubilities in water"
CaCO3 is a common form of Calcium sold on the market. Many people have Ca deficiencies and need Calcium supplements. They go to health food stores where they are told that CaCO3 is a natural substance, and only natural substances should be used. The truth is that CaCO3 is totally insoluble in water. Sea shells are made of CaCO3 which when sharks eat them they (the sharks) suffer a terrible case of indigestion. 

That might help you to remember the variable solubilities of some ionic compounds.
Besides I think mother nature has a bizarre sense of humor.

Any photo? or something

C) electrons encircling a nucleus with neutrons and protons