Chemistry, asked by lakshyasaini, 1 year ago

reactions of acids with metal , non metal and bases .. please give right answer

Answers

Answered by maroof1
5
HOW DO ACIDS AND BASES REACT WITH METALS?

When an acid combines with metal it forms salt and release hydrogen gas

Metal + acid – metal salt + H2

2Na + H2Co3 – Na2Co3 + H2

When a base combine with metal it forms metal salt / base and release hydrogen gas



Base + metal – base/metals/salt + H2



2NaoH + Zn – Na2ZnO3 + H2 (sodium Zincates)

Base reacts only with zinc and aluminum



How do metal carbonate and hydrogen carbonate react with acids to give a corresponding salt, carbon dioxide and water?



All metal carbonates and hydrogen carbonate react with acids to give a corresponding salt, carbon dioxide and water



Metal carbonate / metal hydrogen carbonate + acid – salt +CO2 + H2O



Na2CO3 + 2HCl – 2Nacl + H2O + CO2

NaHCo2 + Hcl – H2O + H2O + CO2

Limestone, chalk and marble are different form of calcium carbonate



How do acids and bases react with each other?



When acids react with bases it forms salt and water



Acid + base – salt + water

NaOH + Hcl – Nacl + H2O

The reaction between an acid and a base to give salt and water is called neutralization reaction
In this reaction the effect of a base is nullified by and acid and vice-Vera
Reaction of metallic oxides with acids

When acid reacts with metallic oxide then it forms corresponding salt and water

Metal oxide + acid – salt + water

CuO + H2SO4 – CuSO4 + H2O

Acids react with metallic oxides to give salt and water similar to the reaction acid and base So, metallic oxides are called basic oxide
Reaction of a Non – metallic oxide with base

When base reacts with non-metallic oxide then it forms salt and water

Non – metallic oxide + base – salt + water

Ca (OH)2 + CO2 – CaCO3 + H2O

This reaction is like acid and base So, non – metallic oxides are acidic in nature

What do all acids and all bases have in common?

All acids have H+ ions in common and all bases have OH- ions in common

What happens to an acid or a base in a water solution?

When an acid is mixed in water it dissociates H+ ions

Hcl + H2O – H3O+ +cl-

Hydrogen ions cannot exist alone so, it combines with water molecules and forms H3O+ ions called hydronium

When a base is mixed with water it dissociate OH- ions
NaOH (s) H2O Na + (aq) + OH- (aq)

KOH (s) H2O K + (aq) + OH- (aq)
Answered by Sharvan10102
1
Acids will react with reactive metals,such as magnesium and zinc,to make out salt and hydrogen.the hydrogen causes bubbling during the reaction.It can be detected using a light splint,which causes the gases to burn with a squeaky pop.

when the burning matchstick or candle burns with a pop sound it confirms the evoulution of hydrogen gas.Copper does not react even with concentrated hydrochloric acid.However,copper react with sulphuric acid. Non-metals generally do not react with acids.

Acid-Base reactions.When an acid and a base are placed together,they react to nuetralize the acid and base properties,producing a salt.theH(+) cation of the acid combines with the OH(-) anion of the base to form water.The compound formed by the cation of the base and the anion of the acid is called salt.

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