Question

What happens when Sulphuric acid react with:
1.Metal (Zinc)
2.Metal carbonate( Sodium carbonate)
3.Base( potassium hydroxide)
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Answer 1

Answer:

1.Zinc sulphate is formed along with liberation of hydrogen gas

2.Zinc sulphate and water formed,along with liberation of cabon dioxide gas.

3.Potassium sulphate and water are formed.

Explanation:

1.Zn+H2SO4 (aq)→ZnSO4 (aq)+H2

2.Na2CO3(aq)+H2SO4(aq)->Na2SO4( a q ) + CO2 ( g ) + H2O ( l ) .

3.2KOH + H2SO4 ———→ K2SO4 + 2H2O ( Balanced equation)

Answer 2

Answer:

Dear, It's Pretty very Very Simple

So let's start with the first one

(i)So,Zinc reacts with sulphuric acid to form zinc sulphate and hydrogen gas is evolved.Now this is,Displacement reaction of a non-metal by a metal. The zinc will react with sulphuric acid forming zinc sulphate dissolved in solution and releasing hydrogen gas..

so, Hydrogen gas is produced when zinc reacts with sulpheric acid

Zn+H2SO4=ZnSO4+H2

(ii)Now,When Sodium carbonate reacts with sulphuric acid to give sodium sulphate, water & carbon dioxide.Salt, water and carbon dioxide are made.Bubbling is caused in carbon dioxide during the reaction, which is observed as fizzing.

Na2CO3 + H2SO4 = Na2SO4 + CO2 + H2O

(iii) So now when,Potassium hydroxide reacts with sulfuric acid.Potassium sulfate and water are formed in the reaction.

(Also Note that this is a Neutralization reaction. so when acid reacts with base is Neutralisation reaction.)

H2SO4 + KOH = K2SO4 + H2O