laws of chemical combination and the people who started it

With the development of more scientific ideas on elements, compounds and mixtures, people began to probe into how and why substances reac..

When substances react, they do so by following certain laws. These laws are called the laws of chemical combination. These formed the basis of Dalton's atomic theory of matt..

The study of reactions is one of the important areas of Chemistry. There are many aspects of a reaction like the rate of reaction, energy absorbed or evolved, mechanism of a reaction that can be evaluated only with weight and volume relationships. A study of reactions is possible by understanding t..

The volumes of gases used and produced in a chemical reaction, are in the ratio of small whole numbers, when measured at constant temperature and pressure. This law is applicable only to gases and does not apply to the volumes of solids and liqui..

Newlands' Law of Octaves - John Alexander Reina Newland was a chemist as well as a lover of music. Newland arranged many of the known elements in the increasing order of their atomic masses. He started with the element having the lowest atomic mass (hydrogen) and ended at thoriu..

In reversible reactions chemical reactions take place in both the forward and backward directions. For example, the reaction between gaseous hydrogen and iodine vapours to give gaseous hydrogen iodide is a reversible reaction and may be expressed as: In this reaction, the products cannot ..

This law was proposed by Louis Proust in 1799, which states that: 'A chemical compound always consists of the same elements combined together in the same ratio, irrespective of the method of preparation or the source from where it is taken'. For example, water is alwa..

Nuclear Energy and Chemical Energy - Nuclear energy is released when very small particles of matter split or combine. After the split or combination, they result in small particles or heavy particle. The rest of the mass is changed into energy. This process of changing..

(i) The law of octaves was the first logical attempt to classify elements on the basis of atomic weights. (ii) Periodicity of elements was recognised for the first time. Remember:- In 1860, there was a conference of chemists in Karl Sruhe, Germany. During this conference, Stanislao ..

. On the other hand if the electrolyte is a solution of silver nitrate AgNO 3 and electrodes are silver plates it is called a silver voltameter. When appropriate direct potential difference is applied across the electrodes, the electrolyte starts conducting current. Chemical Equ..