Question

please balance the equation and name the type who will give the answer correctly they will get 50 likes + follow + brainlliest.​

Answer 1

Required Answers:-

$\sf (a) Cl_2+2KBr\longrightarrow2KCl+Br_2$

Here this reaction is already balanced and Chlorine being more reactive than bromine displaces it from its compound.

Hence this reaction is displacement reaction.

$\sf (b) NaOH+HCl\longrightarrow NaCl+H_2O$

Here this reaction is also balanced.

In this reaction, mutual exchanging of ions is taking place so the type of reaction is double displacement reaction.

$\sf (c) 2HgO\longrightarrow 2Hg+O_2$

This reaction is also already balanced. The type of reaction is Decomposition reaction as the reactions are broken up into its constituent elements. This type of reaction requires energy either in the form of heat, electricity or light.

$\sf (d) Fe+CuSO_4\longrightarrow FeSO_4+Cu$

There's also no need to balance this reaction, the type of reaction is displacement reaction as iron (Fe) being more reactive displaced copper from its compound.

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A bit explanation:-

• Balancing of chemical equation is necessary in order to justify law of conservation of mass. Balancing should be done by focusing on no. Of molecules of element on both sides of reaction.

• The type of reaction can be identified easily by understanding the general form of equation.

General form of equations:-

• Displacement reaction

AB+C→AC+B

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• Double displacement reaction

AB+CD→AD+BC

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• Combination reaction

A+B→AB

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• Decomposition reaction

AB→A+B

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