AP BIOLOGY

Detailed explanation-1: -Carbonates (CO32–), chromates (CrO42–), phosphates (PO43–), silicates (SiO42–): All carbonates, chromates, phosphates, and silicates are insoluble. Exceptions: those of ammonium, potassium and sodium.

Detailed explanation-2: -Inorganic compounds are generally polar, and they are soluble in water.

Detailed explanation-3: -Because they lack charged poles, nonpolar covalent substances do not dissolve in water and are called hydrophobic (water fearing).

Detailed explanation-4: -Inorganic salts are appreciably soluble in organic media, principally of the oxygenated forms (alcohols, ketones, ethers, esters), when they are capable of forming neutral molecules in solution.

Detailed explanation-5: -Inorganic compounds are rather simple chemicals present in ground water. These chemicals are generally described as mineral in nature and usually exist as ions (chemical substances with a positive or negative charge) when dissolved in water.