lavoisier

Atoms and Molecules - Laws of Chemical Combination With the development of more scientific ideas on elements, compounds and mixtures, people began to probe into how and why substances react. French chemist A. Lavoisier laid the foundation to the scientific investigation of matter by descr..

Introduction - With the rapid development of Chemistry and the discovery of new elements, it was necessary to develop a simple way to study and remember the numerous properties of the elements and their compounds. This gave rise to the necessity of classification of the elements into various groups..

Discovery * Sulphur was initially called brimstone * Free sulphur 'gandhaka' was known in India 3000 years ago * It was used in fumigation, medicines and bleaching by Aryans, Greeks and Romans * In 1777, Lavoisier was the first to recognize the basic nature of ..

Johann Glauber (1604-1668) prepared nitric acid by heating nitre with concentrated sulphuric acid and then condensing the vapour. While Henry Cavendish determined the composition of nitric acid, Lavoisier proved that oxygen is present in nitric acid. Some Basic Facts of Nitric Ac..

Discovery - Sulphur was initially called brimstone Free sulphur 'gandhaka' was known in India 3000 years ago It was used in fumigation, medicines and bleaching by Aryans, Greeks and Romans In 1777, Lavoisier was the first to recognize the basic nature of sulphur Sulphur is essential to li..

Hydrogen was named by Lavoisier using the Greek words 'Hydro' ie., water and 'Genes' meaning forming. Chlorine has its origin from Greek word - 'Chloros' - meaning greenish yellow, 'Bromos' means stench in Greek and 'Iodes' in Greek means violet. The word nickel has originated fro..

: an active part, and an inactive part. This discovery was made by John Mayow in 1674. In 1789, Antoine Lavoisier found out that the active and the inactive parts were in the proportion of 1:4 by volume. The active part was later named oxygen, and the inactive part, nitrogen. Lavoisi..

: an active part, and an inactive part. This discovery was made by John Mayow in 1674. In 1789, Antoine Lavoisier found out that the active and the inactive parts were in the proportion of 1:4 by volume. The active part was later named oxygen, and the inactive part, nitrogen. Lavoisi..

According to the chemical classification of matter there are two main categories: Pure substances Mixtur..