Question

Given the balanced equation representing a reaction:

6Li +N2 --> 2Li3N
Which type of chemical reaction is represented by this equation?
(1) synthesis (2) decomposition
(3) single replacement (4) double replacement

Answer 1

(1) synthesis is the answer because only one product is formed~

Answer 2

Answer : The correct option is, (1) synthesis

Explanation :

Synthesis reaction : A type of chemical reaction in which multiple reactants combine to form a single product.

It is represented as,

`X+Y\rightarrow XY`

Decomposition reaction : A type of chemical reaction in which a single reactant decomposes into two or more products.

It is represented as,

`XY\rightarrow X+Y`

Single replacement reaction : A type of chemical reaction where the more reactive element replace the less reactive element.

It is represented as,

`A+BC\rightarrow AC+B`

(A is more reactive element and B is less reactive element)

Double replacement reaction : A type of chemical reaction in which a positive cation and a negative anion of two reactants exchange their places to form two new products.

It is represented as,

`AB+CD\rightarrow AD+CB`

(A and C are the cations, B and D are the anions)

The given balanced reaction is,

`6Li+N_2\rightarrow 2Li_3N`

The given reaction is an example of synthesis reaction in which lithium combine with the nitrogen to form a single product as lithium nitride.

Hence, the correct option is, (1) synthesis reaction