Question

Predict the missing component of each reaction

Answer 1

(1) The missing component is
`3O_2`.

(2) The missing component is
`H_2O`.

Explanation :

Balanced chemical reaction : It is defined as the reaction in which the number of atoms of individual elements present on reactant side must be equal to the product side.

Part 1 :

Decomposition reaction : It defined as the reaction in which larger reactant molecules decomposes to give two or more smaller products molecule.

The balanced chemical reaction will be:

`2KClO_3\rightarrow 2KCl+3O_2`

Thus, in this reaction the missing component is
`3O_2`.

Part 2 :

Synthesis reaction : It is defined as the chemical reaction where multiple substances or reactants combine to form a single product.

`MgO+H_2O\rightarrow Mg(OH)_2`

Thus, in this chemical reaction the missing component is
`H_2O`.

Answer 2

Answer: 1.
`3O_2`

2.
`H_2O`

Step-by-step explanation:

According to the law of conservation of mass, mass can neither be created nor be destroyed. Thus the mass of products has to be equal to the mass of reactants. The number of atoms of each element has to be same on reactant and product side. Thus chemical equations are balanced.

1. Decomposition is a type of chemical reaction in which one reactant gives two or more than two products.

`2KClO_3\rightarrow 2KCl+3O_2`

Thus in balanced chemical decomposition of
`2KClO_3` , the missing component is
`3O_2`.

2. Synthesis is a type of chemical reaction in which two reactants combine to give a single product.

`MgO+H_2O\rightarrow Mg(OH)_2`

Thus in balanced synthesis reaction of
`Mg(OH)_2` , the missing component is
`H_2O`.