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Study with Quizlet and memorize flashcards containing terms like Sodium Zincate, Quick Lime, Slaked Lime and more.
Study with Quizlet and memorize flashcards containing terms like what is the equation for converting F to C?, what is the equation for converting C to F?, what is the equation for converting K to C? and more.
Double Displacement Reaction. a reaction in which a gas, a solid precipitate, or a molecular compound forms from the apparent exchange of atoms or ions between two compounds. Oxidation. The reaction in which energy is utilized by the addition of oxygen and removal of hydrogen. Reduction.
Chemical Reactions and Equations, Class 10 Chapter 1 Science Notes help students to study effectively and score higher marks in exams. These notes includes explanation for all the concepts provided in the chapter in short format.
- Chemical Reactions and Equations
- Chemical Reaction
- Characteristics of Chemical Reaction
- Chemical Equations
- Types of Chemical Reactions
This chapter focuses on the balanced and unbalanced chemical reactions and how to balance them.This chapter focused on the importance of chemical equations and their representation by using various symbols and notations.Understanding chemical reactions is always a base for science students.CBSE Class 10 Science chapter 1 notes also contain some very common reactions taking place in our surroundings.The conversion of chemical substances into another chemical substance is known as a chemical reaction.Some of the chemical reactions are rusting of the iron setting of milk into curd respiration etc.The new chemical substance formed will be completely different from the parent substance and only then it can be called a chemical reaction.And the change taking place on them can be called a chemical change.Evolution of gas: In some reactions, there is an evolution of gas for example the reaction between zinc and dilute sulphuric acid is followed by the evolution of hydrogen gas. It can be represented as
For representing a chemical reaction some simple and formulas can be used and this representation is called a chemical equation. For example, when A and B are a reactant and C and D are the product...
Combination Reaction
the chemical reaction in which two or more reactance are combined to form another product is a combination reaction. That is, A+B→AB Magnesium reacts with oxygen to form magnesium oxide is a typical example of this reaction. 2Mg+O2Heat→2MgO(s)
Decomposition reaction
When one compounder decomposes into two or more compounds it is called a decomposition reaction. That is, AB→A+B A typical example of a decomposition reaction is the formation of calcium oxide and carbon dioxide by the decomposition of calcium carbonate. CaCO3(s) Heat→CaO+CO2(g) Thermal decomposition is when a substance undergoes a decomposition reaction by heating it is thermal decomposition. CaCO3(s) Heat→CaO+CO2(g) Electrolytic decomposition is the reaction signature a compound decomposes...
Photolysis or Photodecomposition
The decomposition reaction performed in the presence of sunlight is known as photolysis. For example, when silver chloride is put in the sunlight it will decompose to produce the metal silver and chlorine gas. The reaction is, 2AgCl sunlight→2Ag+Cl2
- Irshad Anwar
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Chemistry Notes for Class 10 Chapter 1 – Chemical Reactions & Equations. Chemical Reactions and Equations is the first chapter of Class 10 Science. This chapter deals with chemical reactions and equations in detail. In other words, you often notice substances change in the environment under different conditions.
