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Presentation PCM All in 1 Guide Book: CBSE Class X for 2022 Examination
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August 2024

2024/2025
1. Introduction to Chemical Reactions Definition: A chemical reaction involves the transformation of one or more substances into new substances with different chemical and physical properties. Signs of Chemical Reactions: Evolution of gas, change in color, formation of precipitate, change in temperature, and change in state. 2. Chemical Equations Representation: A chemical equation represents a chemical reaction using symbols and formulas for the reactants and products. General Form: React...
rishinprajapati
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