Question

Write the balanced chemical equation for the following equations for the following reaction and identify the type of reaction in each case.

(a) Nitrogen gas is treated with hydrogen gas in the presence of a catalyst at 773K to form ammonia gas. 

(b) Sodium hydroxide solution is treated with acetic acid to form sodium acetate and water. 

(c) Ethanol is warmed with ethanoic acid to form ethyl acetate in presence of conc. H₂SO₄. 

(d) Ethene is burnt in presence of oxygen to form carbon dioxide, water and releases heat and light.

Answer 1

(a) When nitrogen gas is treated with hydrogen gas in the presence of a catalyst at 773K to form ammonia gas. The following reaction takes place: 

N₂(g) + 3H₂(g) \(\underset{773 K}{\stackrel{Catalyst}{\longrightarrow}}\) 2NH₃(g)

The above reaction is a type of combination reaction. 

Combination reaction is reaction in which two reactants combined together to form a product. 

(b) When sodium hydroxide solution is treated with acetic acid to form sodium acetate and water. The following reaction takes place: 

NaOH + CH₃COOH → CH₃COONa + H₂O 

The above reaction is a type of neutralization reaction/ double displacement reaction. 

A neutralization reaction is a reaction in which base (NaOH) and acid (CH₃COOH) react together to form a salt (CH₃COONa) and water. 

(c) When ethanol is warmed with ethanoic acid to form ethyl acetate in presence of conc. H₂SO₄. The following reaction takes place: 

C₂H₅OH + CH₃COOH \(\overset{H_2SO_4 conc}\longrightarrow\) CH₃COOC₂H₅ +H₂O

The above reaction is a type of esterification reaction/double displacement reaction. 

An esterification reaction is a reaction in which alcohol (C₂H₅OH) and Carboxylic acid (CH₃COOH) react together to form a sweet-smelling substance called ester (CH₃COOC₂H⁵) 

(d) When ethene is burnt in presence of oxygen to form carbon dioxide, water and releases heat and light. The following reaction takes place:

C₂H₄ + 3O₂→ 2CO₂ + 2H₂O + heat + light 

The above reaction is a type of combustion reaction. 

Combustion reaction is a reaction which takes place in the presence of oxygen to form carbon dioxide.