Soluble, because the cation is K+.
Insoluble, even though most compounds with Br− are soluble, this is an exception.
Soluble, most compounds with Cl− are soluble.
Soluble, because the anion is NO3−.
Insoluble, even though most compounds with SO42− are soluble, this is an exception.
Determine if each of the following is soluble in water: