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Chapter Notes: Chemical Reactions & Equations

VIGYAN

Chapter Notes: Chemical Reactions & Equations Chemical Reactions and Equations Class 10 Notes Introduction In our daily lives, physical changes involve alterations in appearance or state without creating new substances, like melting ice. On the other hand, chemical changes result in the formation of entirely new substances, such as cooking food or rusting iron. Recognizing these changes helps us understand when a chemical reaction occurs. What is a Chemical Reaction? A chemical reaction is a process in which one or more substances, the Reactants , are converted to one or more different substances, the Products . Chemical Equations A chemical equation is a symbolic representation of a chemical reaction using the symbols and formulas of the substances involved. The substances that undergo chemical change in the reaction, Magnesium and Oxygen, are the Reactants. When magnesium burns in air, it combines with oxygen to form magnesium oxide. Chemical equations can be made more concise and useful…

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