q.4. answer the following questions based on the following activity: (4) Give the chemical equation
Answers
Chemical Reactions and Equations starts by citing a few daily life examples involving a chemical change. The observations of the activities mentioned determine whether a chemical reaction has taken place. The first part of the chapter, Chemical Reactions and Equations focuses on the concept of chemical equations. Here, it explains the representation of chemical reactions in word equation form. Further, it deals with writing a balanced chemical equation which is extensively covered in a stepwise manner. Apart from this, writing the symbols of physical states of reactants and products involved in the chemical reactions in addition to its examples are also discussed in the chapter, Chemical Reactions and Equations. The following types of chemical reactions are covered along with a detailed description of the features of those reactions along with suitable examples:
Combination reaction
Decomposition reaction
Displacement reaction
Double displacement reaction
Oxidation and reduction reaction