{"id":9074,"date":"2018-02-08T17:23:48","date_gmt":"2018-02-08T11:53:48","guid":{"rendered":"http:\/\/mycbseguide.com\/blog\/?p=9074"},"modified":"2018-10-16T12:35:56","modified_gmt":"2018-10-16T07:05:56","slug":"chemical-reactions-and-equations-class-10-notes-science","status":"publish","type":"post","link":"https:\/\/mycbseguide.com\/blog\/chemical-reactions-and-equations-class-10-notes-science\/","title":{"rendered":"Chemical Reactions and Equations class 10 Notes Science"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_76 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Table of Contents<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 eztoc-toggle-hide-by-default' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/mycbseguide.com\/blog\/chemical-reactions-and-equations-class-10-notes-science\/#CBSE_Guide_Chemical_Reactions_and_Equations_class_10_Notes\" >CBSE Guide Chemical Reactions and Equations class 10 Notes<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/mycbseguide.com\/blog\/chemical-reactions-and-equations-class-10-notes-science\/#10_Science_notes_Chapter_1_Chemical_Reactions_and_Equations\" >10 Science notes Chapter 1 Chemical Reactions and Equations<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/mycbseguide.com\/blog\/chemical-reactions-and-equations-class-10-notes-science\/#CBSE_Class_10_Science_Revision_Notes_Chapter_1_Chemical_Reactions_and_Equations\" >CBSE Class 10 Science Revision Notes Chapter 1 Chemical Reactions and Equations<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/mycbseguide.com\/blog\/chemical-reactions-and-equations-class-10-notes-science\/#Chemical_Reactions_and_Equations_class_10_Notes_Science\" >Chemical Reactions and Equations class 10 Notes Science<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/mycbseguide.com\/blog\/chemical-reactions-and-equations-class-10-notes-science\/#CBSE_Class_10_Revision_Notes_and_Key_Points\" >CBSE Class 10 Revision Notes and Key Points<\/a><\/li><\/ul><\/nav><\/div>\n<p>CBSE class 10 Science Chapter 1 Chemical Reactions and Equations notes in PDF are available for free download in myCBSEguide mobile app. The best app for CBSE students now provides Chemical Reactions and Equations class 10 Notes Science latest chapter wise notes for quick preparation of CBSE board exams and school based annual examinations. Class 10 Science notes on chapter 1 Chemical Reactions and Equations are also available for download in CBSE Guide website.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"CBSE_Guide_Chemical_Reactions_and_Equations_class_10_Notes\"><\/span>CBSE Guide Chemical Reactions and Equations class 10 Notes<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>CBSE guide notes are the comprehensive notes which covers the latest syllabus of CBSE and NCERT. It includes all the topics given in NCERT class 10 Science text book. Users can download CBSE guide quick revision notes from myCBSEguide mobile app and my CBSE guide website.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"10_Science_notes_Chapter_1_Chemical_Reactions_and_Equations\"><\/span>10 Science notes Chapter 1 Chemical Reactions and Equations<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Download CBSE class 10th revision notes for chapter 1 Chemical Reactions and Equations in PDF format for free. Download revision notes for Chemical Reactions and Equations class 10 Notes and score high in exams. These are the Chemical Reactions and Equations class 10 Notes prepared by team of expert teachers. The revision notes help you revise the whole chapter in minutes. Revising notes in exam days is on of the best tips recommended by teachers during exam days.<\/p>\n<p style=\"text-align: center;\"><strong>Revision notes for Class 10 Science\u00a0<a class=\"button\" href=\"https:\/\/mycbseguide.com\/downloads\/cbse-class-10-science\/1176\/\">Download as PDF<\/a><\/strong><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignright\" src=\"https:\/\/media-mycbseguide.s3.ap-south-1.amazonaws.com\/images\/blog\/10%20Science%20Book.jpg\" alt=\"Chemical Reactions and Equations class 10 Notes Science\" width=\"129\" height=\"159\" \/><\/p>\n<h2><span class=\"ez-toc-section\" id=\"CBSE_Class_10_Science_Revision_Notes_Chapter_1_Chemical_Reactions_and_Equations\"><\/span><strong>CBSE Class 10 Science Revision Notes Chapter 1 Chemical Reactions and Equations <\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><strong>Chemical Reaction <\/strong>: Whenever a chemical change occurs we can say that a chemical reaction (permanent change)\u00a0has taken place which can be expressed symbolically by a <strong>chemical equation.<\/strong><\/p>\n<p>e.g. Food gets digested in our body<\/p>\n<ul>\n<li>Rusting of iron.<\/li>\n<\/ul>\n<p>magnesium is burnt in air to form magnesium oxide. This chemical reaction can be represented as<\/p>\n<p><span class=\"cke_widget_wrapper cke_widget_inline cke_widget_selected\"><span class=\"math-tex cke_widget_element\"><img decoding=\"async\" src=\"https:\/\/elpiscart.com\/cgi-bin\/mathtex.cgi?2Mg + {O_2}\\; \\to \\;2MgO\" \/><\/span><\/span><\/p>\n<ul>\n<li>We can observe or recognise a chemical reaction by observing change in state, colour, by evolution of gas or by change in temperature.<\/li>\n<li>Physical state of the reactants and the products are mentioned to make chemical reaction more informative. e.g. we use (g) for gas, (l) for liquid, (s) for solid and (aq) for aqueous.<\/li>\n<\/ul>\n<p>Balanced Equation : A balanced equation is one in which the number of atoms on the reactant and product sides are equal.<br \/>\n<img decoding=\"async\" src=\"image\/png;base64,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\" alt=\"\" \/><\/p>\n<p><strong>Balancing Equation<\/strong> : We balance a chemical equation so that no. of atoms of each element involved in the reaction remains the same at the reactant and product side.<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/revise\/10\/science\/10_sc_ch01_10.png\" \/><\/p>\n<p><strong>Types of Reaction<\/strong><\/p>\n<p><strong>I. Combination Reaction<\/strong> :\u2013 The reaction in which two or more substances combine to form a new single substance.<br \/>\ne.g.<br \/>\n<img decoding=\"async\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/revise\/10\/science\/10_sc_ch01_05.png\" \/><\/p>\n<ul>\n<li><span class=\"cke_widget_wrapper cke_widget_inline cke_widget_selected\"><span class=\"math-tex cke_widget_element\"><img decoding=\"async\" src=\"https:\/\/elpiscart.com\/cgi-bin\/mathtex.cgi?{C_a}{(OH)_2}\\;\" \/><\/span><\/span>slaked lime is used for white washing walls. It reacts with <span class=\"cke_widget_wrapper cke_widget_inline cke_widget_selected\"><span class=\"math-tex cke_widget_element\"><img decoding=\"async\" src=\"https:\/\/elpiscart.com\/cgi-bin\/mathtex.cgi?C{O_2}\" \/><\/span><\/span>\u00a0to form Calcium Carbonate and gives a shiny finish to the walls<\/li>\n<\/ul>\n<p><span class=\"cke_widget_wrapper cke_widget_inline cke_widget_selected\"><span class=\"math-tex cke_widget_element\"><img decoding=\"async\" src=\"https:\/\/elpiscart.com\/cgi-bin\/mathtex.cgi?Ca{(OH)_{{2_{(aq)}}}}+C{O_2}_{(g)}\\to \\\\ CaC{O_{{3_{(s)}}}} + {H_2}O(l)\" \/><\/span><\/span><\/p>\n<p>Calcium Hydroxide Calcium Carbonate<\/p>\n<p>(ii) Burning of Coal<\/p>\n<p><span class=\"cke_widget_wrapper cke_widget_inline cke_widget_selected\"><span class=\"math-tex cke_widget_element\"><img decoding=\"async\" src=\"https:\/\/elpiscart.com\/cgi-bin\/mathtex.cgi?{C_{(2)}} + {O_{{2_{(g)}}}}\\; \\to C{O_{{2_{(g)}}}}\\; +\" \/><\/span><\/span>heat+ light<\/p>\n<p>(iii) Formation of water<\/p>\n<p><span class=\"cke_widget_wrapper cke_widget_inline cke_widget_selected\"><span class=\"math-tex cke_widget_element\"><img decoding=\"async\" src=\"https:\/\/elpiscart.com\/cgi-bin\/mathtex.cgi?2{H_{{2_{(g)}}}}\\; + \\;{O_{2(g)}}\\; \\to \\;2{H_2}O(l)\" \/><\/span><\/span><\/p>\n<p><strong>Exothermic Reactions<\/strong> : Reaction in which heat is released along with the formation of products.<\/p>\n<p>eg.. <span class=\"cke_widget_wrapper cke_widget_inline cke_widget_selected\"><span class=\"math-tex cke_widget_element\"><img decoding=\"async\" src=\"https:\/\/elpiscart.com\/cgi-bin\/mathtex.cgi?\\;\\;C{H_{{4_{(g)}}}} + \\;2{O_{{2_{(g)}}}}\\;\\; \\to \\;C{O_{{2_{(g)}}}} + \\;2{H_2}{O_{(g)}}\" \/><\/span><\/span><\/p>\n<p><strong>Endothermic Reaction <\/strong>:The reactions which require energy in form of heat, light or electricity are called endothermic reaction<\/p>\n<p>eg.. <span class=\"cke_widget_wrapper cke_widget_inline cke_widget_selected\"><span class=\"math-tex cke_widget_element\"><img decoding=\"async\" src=\"https:\/\/elpiscart.com\/cgi-bin\/mathtex.cgi?2Ba{(OH)_2} + N{H_4}Cl \\to \\ 2BaC{l_2} + N{H_4}OH\" \/><\/span><\/span><\/p>\n<p><strong>II. Decomposition Reactions<\/strong> :The reaction in which a single substance decomposes to give two or more substances. De composition reactions can be of three types:<\/p>\n<p><strong>DECOMPOSITION REACTIONS :-<\/strong><\/p>\n<ol>\n<li><strong>Thermal Decompostition<\/strong> :-When a decomposition reaction is carried out by heating<\/li>\n<\/ol>\n<p><img decoding=\"async\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/revise\/10\/science\/10_sc_ch01_04.png\" \/><\/p>\n<ol>\n<li><strong>Electrolytic Decomposition <\/strong>:- When a decomposition reaction is carried out by electric current,<\/li>\n<li>.<span class=\"cke_widget_wrapper cke_widget_inline cke_widget_selected\"><span class=\"math-tex cke_widget_element\"><img decoding=\"async\" src=\"https:\/\/elpiscart.com\/cgi-bin\/mathtex.cgi?{H_{{2_{(l)}}}}\\;\\;\\xrightarrow[{current}]{{electric}}2{H_{{2_{(g)}}}} + \\;{O_{{2_{(g)}}}}\" \/><\/span><\/span><\/li>\n<\/ol>\n<p><img decoding=\"async\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/revise\/10\/science\/10_sc_ch01_01.png\" \/><\/p>\n<p><img decoding=\"async\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/revise\/10\/science\/10_sc_ch01_09.png\" \/><\/p>\n<ul>\n<li>Silver bromide behaves similarly<\/li>\n<\/ul>\n<p><span class=\"cke_widget_wrapper cke_widget_inline cke_widget_selected\"><span class=\"math-tex cke_widget_element\"><img decoding=\"async\" src=\"https:\/\/elpiscart.com\/cgi-bin\/mathtex.cgi?2Ag\\;Br\\;\\xrightarrow{{Sunlight}}\\;2Ag(s)\\; + \\;B{r_2}(g)\" \/><\/span><\/span><\/p>\n<p>III. <strong>Displacement Reaction<\/strong>:The chemical reaction in which an element displaces another element from its solution<\/p>\n<p><span class=\"cke_widget_wrapper cke_widget_inline cke_widget_selected\"><span class=\"math-tex cke_widget_element\"><img decoding=\"async\" src=\"https:\/\/elpiscart.com\/cgi-bin\/mathtex.cgi?F{e_{(s)}}+CuS{O_{_{4(aq)}}} \\to FeS{O_4} + C{u_{(s)}}\" \/><\/span><\/span><\/p>\n<p>Copper (aq)<\/p>\n<p>Sulphate Iron Sulphate<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/revise\/10\/science\/10_sc_ch01_02.jpg\" \/><\/p>\n<p>Fe being more reactive than Cu displaces it from <span class=\"cke_widget_wrapper cke_widget_inline cke_widget_selected\"><span class=\"math-tex cke_widget_element\"><img decoding=\"async\" src=\"https:\/\/elpiscart.com\/cgi-bin\/mathtex.cgi?{C_u}S{O_4}\" \/><\/span><\/span><\/p>\n<p><img decoding=\"async\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/revise\/10\/science\/10_sc_ch01_06.png\" \/><\/p>\n<ul>\n<li>Zinc and lead are more reactive elements than copper. They displace copper from its compounds.<\/li>\n<\/ul>\n<p>IV. <strong>Double Displacement Reaction<\/strong> :The reaction in which two different atoms or group of atoms are mutually exchanged<br \/>\n<img decoding=\"async\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/revise\/10\/science\/10_sc_ch01_07.png\" \/><\/p>\n<p>A white substance is formed due to above reaction. The insoluble substance i.e., <span class=\"cke_widget_wrapper cke_widget_inline cke_widget_selected\"><span class=\"math-tex cke_widget_element\"><img decoding=\"async\" src=\"https:\/\/elpiscart.com\/cgi-bin\/mathtex.cgi?BaS{O_4}\" \/><\/span><\/span>is called precipitate.<\/p>\n<p><strong>Precipitation Reaction<\/strong> \u2013 Any reaction that produces a precipitate is called a precipitation reaction.<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/revise\/10\/science\/10_sc_ch01_08.png\" \/><\/p>\n<p>the downward facing arrown represents the formation of precipitate.<\/p>\n<p>V. <strong>Oxidation<\/strong> :Oxidation is the gain of oxygen or loss of hydrogen<\/p>\n<p><span class=\"cke_widget_wrapper cke_widget_inline cke_widget_selected\"><span class=\"math-tex cke_widget_element\"><img decoding=\"async\" src=\"https:\/\/elpiscart.com\/cgi-bin\/mathtex.cgi?e.g.\\;\\;\\;2Cu\\; + \\;{O_2}\\;\\xrightarrow{{Heat}}\\;\\;2CuO\" \/><\/span><\/span><\/p>\n<p>When copper is heated a black colour appears. If this CuO is reactedwith hydrogen gas then again Cu becomes brown as reverse reaction takes place<\/p>\n<p><span class=\"cke_widget_wrapper cke_widget_inline cke_widget_selected\"><span class=\"math-tex cke_widget_element\"><img decoding=\"async\" src=\"https:\/\/elpiscart.com\/cgi-bin\/mathtex.cgi?{C_u}O\\; + \\;{H_2}\\;\\xrightarrow{{Heat}}\\;Cu\\; + {H_2}O\" \/><\/span><\/span><\/p>\n<p>VI. <strong>Reduction<\/strong> : Reduction is the loss of oxygen or gain of hydrogen.<\/p>\n<ul>\n<li><strong>Redox Reaction<\/strong> : The reaction in which one reactant gets oxidised while other gets reduced<\/li>\n<\/ul>\n<p><img decoding=\"async\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/revise\/10\/science\/10_sc_ch01_03.png\" \/><\/p>\n<p>eg.. <span class=\"cke_widget_wrapper cke_widget_inline cke_widget_selected\"><span class=\"math-tex cke_widget_element\"><img decoding=\"async\" src=\"https:\/\/elpiscart.com\/cgi-bin\/mathtex.cgi?ZnO + \\;C\\; \\to \\;\\;Zn\\; + \\;CO\" \/><\/span><\/span><\/p>\n<p><span class=\"cke_widget_wrapper cke_widget_inline cke_widget_selected\"><span class=\"math-tex cke_widget_element\"><img decoding=\"async\" src=\"https:\/\/elpiscart.com\/cgi-bin\/mathtex.cgi?Mn{O_2}+ 4HCl \\to MnC{l_2} + 2{H_2}O + C{l_2}\" \/><\/span><\/span><\/p>\n<ul>\n<li>Corrosion :When a metal is attacked by substances around it such as moisture, acids etc.<\/li>\n<\/ul>\n<p>(i) Rusting of iron. i.e Reddish brown coating on iron of <span class=\"cke_widget_wrapper cke_widget_inline cke_widget_selected\"><span class=\"math-tex cke_widget_element\"><img decoding=\"async\" src=\"https:\/\/elpiscart.com\/cgi-bin\/mathtex.cgi?F{e_2}{O_3}\" \/>\u00a0<\/span><\/span>is formed.<\/p>\n<p>(ii) Black coating on Silver.<\/p>\n<p>Rusting of iron can be prevented by painting, oiling the surface or by galvanisation.<\/p>\n<ul>\n<li>Rancidity<strong> :<\/strong>When fats and oils are oxidised they become rancidand their smell and taste change.<\/li>\n<li>Antioxidants are added to foods containing fats and oil.<\/li>\n<\/ul>\n<p>e.g.<span class=\"cke_widget_wrapper cke_widget_inline cke_widget_selected\"><span class=\"math-tex cke_widget_element\"><img decoding=\"async\" src=\"https:\/\/elpiscart.com\/cgi-bin\/mathtex.cgi?{N_2}\" \/>\u00a0<\/span><\/span>is added to packet of chips to prevent oxidation of fats and oils.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Chemical_Reactions_and_Equations_class_10_Notes_Science\"><\/span>Chemical Reactions and Equations class 10 Notes Science<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<ul>\n<li>CBSE Revision notes (PDF Download) Free<\/li>\n<li>CBSE Revision notes for Class 10 Science PDF<\/li>\n<li>Revision notes Class 10 Science \u2013 CBSE<\/li>\n<li>CBSE Revisions notes and Key Points Class 10 Science<\/li>\n<li>Summary of the NCERT books all chapters in Science class 10<\/li>\n<li>Short notes for CBSE class 10th Science<\/li>\n<li>Key notes and chapter summary of Science class 10<\/li>\n<li>Quick revision notes for CBSE board exams<\/li>\n<\/ul>\n<h2><span class=\"ez-toc-section\" id=\"CBSE_Class_10_Revision_Notes_and_Key_Points\"><\/span><strong>CBSE Class 10 Revision Notes and Key Points<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Chemical Reactions and Equations class 10 Notes. CBSE quick revision note for Class-10 Science, Chemistry, Maths, Biology and other subject are very helpful to revise the whole syllabus during exam days. The revision notes covers all important formulas and concepts given in the chapter. Even if you wish to have an overview of a chapter, quick revision notes are here to do if for you. These notes will certainly save your time during stressful exam days.<\/p>\n<ul>\n<li><a href=\"http:\/\/mycbseguide.com\/downloads\/cbse-class-10-mathematics\/1202\/cbse-revision-notes\/7\/\">Mathematics<\/a><\/li>\n<li><a href=\"http:\/\/mycbseguide.com\/downloads\/cbse-class-10-science\/1176\/cbse-revision-notes\/7\/\">Science<\/a><\/li>\n<li><a href=\"http:\/\/mycbseguide.com\/downloads\/cbse-class-10-social-science\/1896\/cbse-revision-notes\/7\/\">Social Science<\/a><\/li>\n<li><a href=\"http:\/\/mycbseguide.com\/downloads\/cbse-class-10-english-communicative\/1901\/cbse-revision-notes\/7\/\">English Communicative<\/a><\/li>\n<\/ul>\n<p>To download Chemical Reactions and Equations class 10 Notes, sample paper for class 10 Mathematics, Social Science, Science, English Communicative; do check myCBSEguide app or website. myCBSEguide provides sample papers with solution, test papers for chapter-wise practice, NCERT solutions, NCERT Exemplar solutions, quick revision notes for ready reference, CBSE guess papers and CBSE important question papers. Sample Paper all are made available through\u00a0<a href=\"https:\/\/play.google.com\/store\/apps\/details?id=in.techchefs.MyCBSEGuide&amp;referrer=utm_source%3Dmycbse_bottom%26utm_medium%3Dtext%26utm_campaign%3Dmycbseads\"><strong>the best app for CBSE students<\/strong><\/a>\u00a0and myCBSEguide website.<\/p>\n<ul>\n<li class=\"entry-title\"><a href=\"https:\/\/mycbseguide.com\/blog\/acids-bases-salts-class-10-notes-science\/\">Acids Bases and Salts class 10 Notes Science<\/a><\/li>\n<li class=\"entry-title\"><a href=\"https:\/\/mycbseguide.com\/blog\/metals-non-metals-class-10-notes-science\/\">Metals and Non-metals class 10 Notes Science<\/a><\/li>\n<li class=\"entry-title\"><a href=\"https:\/\/mycbseguide.com\/blog\/carbon-compounds-class-10-notes-science\/\">Carbon and its Compounds class 10 Notes Science<\/a><\/li>\n<li class=\"entry-title\"><a href=\"https:\/\/mycbseguide.com\/blog\/periodic-classification-elements-class-10-notes-science\/\">Periodic Classification of Elements class 10 Notes Science<\/a><\/li>\n<li class=\"entry-title\"><a href=\"https:\/\/mycbseguide.com\/blog\/life-processes-class-10-notes-science\/\">Life Processes class 10 Notes Science<\/a><\/li>\n<li class=\"entry-title\"><a href=\"https:\/\/mycbseguide.com\/blog\/control-coordination-class-10-notes-science\/\">Control and Coordination class 10 Notes Science<\/a><\/li>\n<li class=\"entry-title\"><a href=\"https:\/\/mycbseguide.com\/blog\/organisms-reproduce-class-10-notes-science\/\">How do Organisms Reproduce class 10 Notes Science<\/a><\/li>\n<li class=\"entry-title\"><a href=\"https:\/\/mycbseguide.com\/blog\/heredity-evolution-class-10-notes-science\/\">Heredity and Evolution class 10 Notes Science<\/a><\/li>\n<li class=\"entry-title\"><a href=\"https:\/\/mycbseguide.com\/blog\/light-reflection-refraction-class-10-notes-science\/\">Light Reflection and Refraction class 10 Notes Science<\/a><\/li>\n<li class=\"entry-title\"><a href=\"https:\/\/mycbseguide.com\/blog\/human-eye-colourful-world-class-10-notes-science\/\">Human Eye and Colourful World class 10 Notes Science<\/a><\/li>\n<li class=\"entry-title\"><a href=\"https:\/\/mycbseguide.com\/blog\/electricity-class-10-notes-science\/\">Electricity class 10 Notes Science<\/a><\/li>\n<li class=\"entry-title\"><a href=\"https:\/\/mycbseguide.com\/blog\/magnetic-effects-electric-current-class-10-notes-science\/\">Magnetic Effects of Electric Current class 10 Notes Science<\/a><\/li>\n<li class=\"entry-title\"><a href=\"https:\/\/mycbseguide.com\/blog\/sources-energy-current-class-10-notes-science\/\">Sources of Energy Current class 10 Notes Science<\/a><\/li>\n<li class=\"entry-title\"><a href=\"https:\/\/mycbseguide.com\/blog\/environment-class-10-notes-science\/\">Our Environment class 10 Notes Science<\/a><\/li>\n<li class=\"entry-title\"><a href=\"https:\/\/mycbseguide.com\/blog\/management-natural-resources-class-10-notes-science\/\">Management of Natural Resources class 10 Notes Science<\/a><\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>CBSE class 10 Science Chapter 1 Chemical Reactions and Equations notes in PDF are available for free download in myCBSEguide mobile app. The best app for CBSE students now provides Chemical Reactions and Equations class 10 Notes Science latest chapter wise notes for quick preparation of CBSE board exams and school based annual examinations. Class &#8230; <a title=\"Chemical Reactions and Equations class 10 Notes Science\" class=\"read-more\" href=\"https:\/\/mycbseguide.com\/blog\/chemical-reactions-and-equations-class-10-notes-science\/\" aria-label=\"More on Chemical Reactions and Equations class 10 Notes Science\">Read more<\/a><\/p>\n","protected":false},"author":2,"featured_media":9081,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[46,456],"tags":[457,150,505,426,240],"class_list":["post-9074","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-cbse-class-10","category-revision-notes","tag-cbse-notes","tag-cbse-notes-and-key-points","tag-chemical-reactions-and-equations","tag-quick-revision","tag-quick-revision-notes"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.0 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Chemical Reactions and Equations class 10 Notes Science | myCBSEguide<\/title>\n<meta name=\"description\" content=\"Chemical Reactions and Equations class 10 Notes Science chapter 1 in PDF format for free download. 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