which of these are ionic compounds?

Question

Calcium Chloride
Citric Acid
Phenyl Salicylate
Potassium Iodide
Sodium Chloride
Sucrose

and how do you know?

Answer 1

calcium chloride, potassium iodide, sodium chloride

how do i know? practice..

but for you, if you have questions like this, google
"ionic compounds definition"

this is the first link that pops up. read it.....

http://www.elmhurst.edu/~chm/vchembook/143Aioniccpds.html

Answer 2

Sodium, potassium, and calcium compounds almost always exist in their ionic states. Thus calcium chloride, potassium iodide, and sodium chloride are ionic compounds. The other three compounds are not ionic because they are held together only with covalent bonds. You can easily see this by looking up their structures.