Question

Zinc granules on reaction with hydro chloric acid gives zinc chloride and hydrogen gas.? i) What type of heat change is observed in this reaction and write its name? ii) Write word equation for this reaction(if anyone spams u will be reported)​

Answer 1

Answer:

Zinc reacts with dilute HCl to give a metallic zinc chloride with the evolution of hydrogen gas.

Explanation:

a) Dilute sulphuric acid reacts with zinc granules to produce zinc sulphate and hydrogen gas

H

2

SO

4

(aq)+Zn(s)→ZnSO

4

(aq)+H

2

(g)

(b) Dilute hydrochloric acid reacts with magnesium ribbon to produce magnesium chloride and hydrogen gas.

2HCl(aq)+Mg(s)→MgCl

2

(aq)+H

2

(g)

(c) Dilute sulphuric acid reacts with aluminium powder to produce aluminium sulphate and hydrogen gas.

3H

2

SO

4

(aq)+2Al(s)→Al

2

(SO

4

)

3

(aq)+3H

2

(g)

(d) Dilute hydrochloric acid reacts with iron filings to produce ferric chloride and hydrogen gas.

6HCl(aq)+Fe(s)→2FeCl

3

(aq)+3H

2

(g)

hope it helps you

Answer 2

Answer:

Many metals react easily with acids and when they do so, one of the products of the reaction is hydrogen gas. Zinc reacts with hydrochloric acid to produce aqueous zinc chloride and hydrogen (figure below). In a hydrogen replacement reaction, the hydrogen in the acid is replaced by an active metal