4.1. Analysis of Inorganic Substances

4.1.1. Analyse the need for monitoring the environment

4.1.2. Qualitative investigations to test for the presence of aqueous ions

Cations: Ba²⁺, Ca²⁺, Mg²⁺, Pb²⁺, Ag⁺, Cu²⁺, Fe²⁺, Fe³⁺

Anions: Cl ^-, Br ^-, I ^-, OH ^-, CH₃COO^-, CO₃^2-, SO₄^2-, PO₄^3-