1.Chemical reaction and Equation Chemical Reactions: A chemical reaction happens when one or more chemicals are changed into one or more other chemical. Chemical Equation: The method of representing a chemical reaction with the help of symbols and formulae of the substances involved in it, is known as Chemical Equation. Balancing of an Equation: The process of making the number of atoms of each element equal on both the sides of an Equation is called balancing of an equation. H2+Cl2--------2HCl COMBINATION REACTION: A chemical reaction in which two or more substances combine to form a single substances is called a combination reaction. C2+O2-------CO2 Decomposition Reaction: A reaction in which a substances break down into two or more substances is called decomposition reaction. 2NaCl-----------2Na+Cl2 Displacement Reaction: A chemical reaction in which a more reactive metals displaces a less reactive metal from its salt solution is called Displacement reaction. Zn+CuSO4---...
MAA JANKI EDUCATION FOUNDATION TRUST(It is register trust(NGO),registration number:9072/2021) FOUNDER NAME: JANKI DEVI SECRETARY:SANJEEV KUMAR RAI STUDENTS TALENT SEARCH EXAMINATION (STSE)| It is national level olympiad examination of class 1 to 12. STSE is one kind of competitive examination of class 1 to 12.