Nowadays chemical compounds are presented in every field of life, medicine, cleaning, food …...but the chemical industry uses a lot of products, and sometimes very dangerous, for example, Sulphuric acid is so important that its level of production and consumption is an indication of development of a country. In this activity, you have to look for three importants chemicals for industry used as raw materials to manufacture other compounds and, apart from explaining what they are used for, investigate their chemical formula and calculate their molecular mass.