Question

balance following equations in box method :1. barium chloride is mixed with copper sulphate solution and a white precipitate is obtained
2.iron nails when dipped in copper sulphate solution turns brown
3.on heating copper in a China dish it form black cupric acid​

Answer 1

Answer:

balance following equations in box method :1. barium chloride is mixed with copper sulphate solution and a white precipitate is obtained

2.iron nails when dipped in copper sulphate solution turns brown

3.on heating copper in a China dish it form black cupric acid

Explanation:

bahi yeh kya tha dono alag alag hote he kya

Answer 2

Answer:

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: