HSC Chemistry 2nd Paper Note 5th Chapter Economical Chemistry. Chemical marine pollution can cause many disturbances which, in the shorter or longer term, can have a negative impact on the economy. These effects may be related to living organisms, ecosystems as well as humans and their activities. The methods used to assess economic impact distinguish all … Read more
Last Updated: March 22, 2026 at 8:28 pm
HSC Chemistry 2nd Paper Note 3rd Chapter Quantitative Chemistry. Quantitative chemistry is a very important branch of chemistry because it enables chemists to calculate known quantities of materials. For example, how much product can be made from a known starting material or how much of a given component is present in a sample? Quantitative analysis … Read more
Last Updated: March 22, 2026 at 8:28 pm
HSC Chemistry 2nd Paper Note 4th Chapter Electrochemistry. Electrochemistry is the branch of physical chemistry that studies the relationship between electricity, as a measurable and quantitative phenomenon, and identifiable chemical change, with either electricity, considered an outcome of a particular chemical change or vice-versa. These reactions involve electric charges moving between electrodes and an electrolyte … Read more
Last Updated: March 22, 2026 at 8:28 pm
HSC Chemistry 2nd Paper Note 1st Chapter Environmental Chemistry. Environmental chemistry is the scientific study of the chemical and biochemical phenomena that occur in natural places. It should not be confused with green chemistry, which seeks to reduce potential pollution at its source. It can be defined as the study of the sources, reactions, transport, effects, … Read more
Last Updated: March 22, 2026 at 8:28 pm