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What is Photosynthesis ?

By Sachin Joshi
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Chemical reaction and equation

By Sachin Joshi
                   CHAPTER NUMBER I ---------------------------------------------------------------------------- CHEMICAL REACTION AND EQUATION  * Chemical reaction : -               A chemical reaction is a process in which one or more substances are converted into one or more different substances. During a chemical reaction, the bonds between atoms in the reactants are broken and new bonds are formed to create the products.  Chemical reactions can be represented by chemical equations, which show the reactants on the left-hand side of the equation and the products on the right-hand side. For example, the chemical equation for the reaction between hydrogen gas (H2) and oxygen gas (O2) to form water (H2O) is:  2H2 + O2 → 2H2O  This equation shows that two molecules of hydrogen gas and one molecule of oxygen gas react to form two molecules of water.  * Chemical reactions can ...
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What is Photosynthesis ?

By Sachin Joshi
                        WHAT IS PHOTOSYNTHESIS? Photosynthesis is the process by which plants, algae, and some bacteria convert light energy into chemical energy in the form of glucose and other organic compounds. It is a complex biochemical process that occurs in the chloroplasts of plant cells and involves the absorption of light by pigments such as chlorophyll. The overall equation for photosynthesis is: 6CO2 + 6H2O + light energy → C6H12O6 + 6O2 In this equation, carbon dioxide (CO2) and water (H2O) are converted into glucose (C6H12O6) and oxygen (O2) through a series of reactions that involve the transfer of electrons and the formation of ATP, a molecule that stores energy. Photosynthesis occurs in two main stages: the light-dependent reactions and the light-independent reactions. In the light-dependent reactions, light energy is absorbed by chlorophyll and other pigments, and used to generate ATP and NADPH, which are ener...
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Metals and Non- Metals / part III / reactivity Series of metals and Extraction of metals from their ores

By Sachin Joshi
*Reactivity Series :-    Reactivity series of metals The Arrangement of elements according to their reactivity is called reactivity series. * Reaction Of Metals with water. Metal react with water to form metal hydroxide and hydrogen gas is released Metal +water ------->metal hydroxide +hydrogen gas Na (s)  + cold H2O (l) ------------>NaOH (aq)+H2(g) K (s) + cold H2O (l) ---------> KOH (aq) + H2 (g) Note:-  Some Metals react with cold water: Sodium and Potassium are the metals which reacts with cold water. * Metals reacts with hot water Some Metals react with hot water: Calcium and Magnesium are the metals which reacts with hot water. Ca (s) + hot H2O (l)  --------> Ca(OH)2 (aq) Mg(s) + hot H20 (l) ----------> Mg(OH)2 (aq) Note:-  Some react with steam:Metals like Iron, Zinc and Aluminium react with steam *when iron reacts with steam : Fe (s)+steam H2O(l)--------->Fe3O4(s) + H2 (g) Some elements don't reacts:- Elements bel...
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