Sodium iodide is soluble in water.
no
An insoluble salt added to water remain as a residue at the bottom of the beaker.
Yes
yes!
He was unable to complete the chemical mixture he intended because one of the ingredients was insoluable.
It does not
that is hydroxide
Some solubles are; Sherbet, Sugar, Salt, Some insolubles are; chalk, sand
Iodine is added to table salt (as NaI, NaIO3, KI or KIO3).
The preparation of insoluble salt can be done by PRECIPITATION METHOD
If the salt is insoluble, any ions in water and the measured pH is the pH of water.
Salts are prepared by a reaction between an acid and a base; the insoluble salt is a precipitate.