14,15, 16, 17 group elements, their compounds
Halogens
Halogens
Chlorine. Hydrochloric acid
Chlorine. Hydrochloric acid
Group 16 elements. Sulfur
Group 16 elements. Sulfur
Oxides of sulfur
Oxides of sulfur
Sulfuric acid. Sulfates
Sulfuric acid. Sulfates
Yield of reaction: solving problems
Yield of reaction: solving problems
Nitrogen. Nitrogen cycle
Nitrogen. Nitrogen cycle
Ammonia. Properties of ammonia
Ammonia. Properties of ammonia
Nitric acid. Nitrates
Nitric acid. Nitrates
Phosphorus and its compounds
Phosphorus and its compounds
Fertilizers
Fertilizers
Silicon and its compounds
Silicon and its compounds