ALLOTROPY INTRODUCTION It is the property by which an element exists in more than one form and each form had different physical properties but identical chemical properties. Elements having these different properties are allotropes. The characteristics of the elements we term as allotropy. ELEMENT SHOWING ALLOTROPY AND CATENATION Carbon exists in different allotropic forms. Some …
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ACID BASE AND SALT CONCEPT OF ACID AND BASE According to Arrhenius theory of electrolytic dissociation, an acid is a hydrogen containing compound which dissociates in aqueous solution. By this it produces H+ ion or H3 O+ (hydronium ion) as only cation. On the other hand compound which produces OH– ions as the only anion …
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RELATIVE PROPORTION OF SOLUTION INTRODUCTION Solution is a homogeneous mixture of two or more substances which contains fixed amount of constituents as relative proportion in solution. The amount may vary time to time. The component present in greater amount is solvent. It dissolves the other component. Most of the time it may be liquid or …
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WHAT TWO ELEMENTS MAKE UP WATER HYDROGEN AND OXYGEN ARE WHAT TWO ELEMENTS MAKE UP WATER {bawris] INTRODUCTION: From outer space, earth appears blue. The reason behind this is the presence of water in the sea and ocean and bawris. Water is present in 71 % of the earth. About 98% of water is present …
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USES OF SOIL-SCIENCE BLOG INTRODUCTION Soil has several air spaces, water molecules and numerous biotic components like burrowing animals (earthworms, ants), microbes (fungi, bacteria) winged worms (beetles, grasshoppers), and big animals (moles, rats ). Some organisms are very small, so we cannot see them in naked eyes. An important soil organism is an earthworm. We …
SCIENCE BLOG – PERIODIC CLASSIFICATION OF ELEMENTS INTRODUCTION There are 117 elements which are having diversified chemical properties. From long before many scientists had worked on these elements to arrange them sequentially to form Periodic classification of elements. Out of them Dobereiner, Newland, Mendeleev and their works are very famous. According to their experiments, Modern …
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SCIENCE BLOG – SYNTHETIC FIBRES AND PLASTICS INTRODUCTION The synthetic fibers made by man are called man-made. All the Synthetic fibres and plastics are prepared by a number of processes using raw materials of petroleum origin called petrochemical. These are obtained by the chemical processing of petrochemical. Synthetic fibers are stronger than natural fibers. It …
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SCIENCE BLOG – METALS AND NONMETALS CLASS 8 INTRODUCTION Elements are the substance which cannot be broken down into two or more simpler substances by chemical reactions. Every element is represented by a symbol. In the blog post metals and nonmetals class 8, we come to know various aspects of metals and nonmetals. There are two …
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SCIENCE BLOG – COAL AND PETROLEUM INTRODUCTION Here about some exhaustible natural resource like natural gas, coal and petroleum will be discussed, which are also called non-renewable sources of energy .This is because when all the natural gas coal and petroleum present under the earth will get used up, no more supply of these will …
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