Class 10 Science Short Notes - Key Points for revision
CHEMICAL REACTIONS AND EQUATIONS - Chapter 1 Chemical Reaction : A chemical reaction is a process that leads to the transformation of one set of chemical substances to another. Chemical Equation : A chemical equation is a symbolic representation of a chemical reaction, which shows the reactants and products involved in the reaction. Balancing of Chemical Equations : The number of atoms of each element should be equal on both sides of the equation. This is done by adjusting the coefficients in the equation. Types of Chemical Reactions : a. Combination Reaction : Two or more substances combine to form a single product. b. Decomposition Reaction : A single substance breaks down into two or more simpler substances. c. Displacement Reaction : A more reactive element displaces a less reactive element from its compound. d. Double Displacement Reaction : Two compounds exchange ions to form two new compounds. Oxidation and Reduction Reactions : a. Oxidation : The addition of or removal of h...