8th grade science chemistry

Mendeleev's periodic table was one of the greatest achievements in chemistry with some of its important contributions as follow..

Question: What is organic chemistry? Answer: Organic chemistry is the study of carbon compounds of living matter i.e., plants and animals (CO 2 , carbonates, bicarbonates etc. do not fall in this category..

Carbon is an element which is of immense significance to us in both its elemental form and in the combined form. Most of what surround you will some compounds of carbon, including your family members and pets! The list given below illustrates the importance of carbon compounds in our daily life: ..

Is Matter around us Pure - Matter can be broadly divided into two major groups, 'Pure' and 'Impure'. In chemistry, the term 'purity' acquires quite a different meaning from what we understand it to be in our day-to-day lif..

With the large growth of carbon compounds, it was necessary to name these compounds in a more systematic way. A committee called the 'International Union for Pure and Applied Chemistry' (IUPAC) put forward a system of giving proper scientific names to carbon based compounds. The names de..

Summary - Study of the compounds of carbon is organic chemistry. They form the basis of living organisms and the things around us. An unique property of carbon is 'catenation'. It is the property of forming bonds with the atoms of the same element. The catenation property of carbon is the..

Is Matter Around us Pure - Is Matter Around us Pure Matter can be broadly divided into two major groups, 'Pure' and 'Impure'. In chemistry, the term 'purity' acquires quite a different meaning from what we understand it to be in our day-to-day life. Normally, when we refer to pure water, ..

Corrosion of Metals - We have learnt that metals that are chemically active get corroded in the presence of a moist atmosphere. Corrosion is an oxidation reaction with atmospheric oxygen in the presence of water on the surface of a metal. Iron corrodes more quickly than most other transition metals..

. In 1793, he left for Manchester to teach physics and chemistry in a college. In 1801, he observed and discovered the law of expansion of gases on heating. He also enunciated the law of partial pressures and found methods of determining vapour pressure of gases. He invented the dew point..

Chemical Reactions and Equations - A physical change is one in which the shape, size, appearance or state, of a substance may alter, but its chemical composition remains same.A change in which the composition of a substance is altered is called as chemical chang..