Science, asked by ujjwalpandey56, 10 months ago

Acids, Bases
and Salts​

Answers

Answered by Anonymous
4

Answer:

Equations of Acids, Bases and Salts:

Acid + Metal → Salt + Hydrogen gas H 2 SO 4 + Zn → ZnSO 4 + H 2

Base + Metal → Salt + Hydrogen gas 2NaOH + Zn → Na 2 ZnO 2 (Sodium zincate) + H 2

Base + Acid → Salt + Water NaOH (aq) + HCl (aq) → NaCl (aq) + H 2 O (l)

Acids give hydronium ions in water HCl + H 2 O → H 3 O + + Cl –

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Answered by BrainlySmile
1

Answer- The above question is from the chapter 'Acids, Bases and Salts'.

Let's know about acids, bases and salts first.

Acids: These are substances in which taste sour. They contain H⁺ ions.

Example: HCl, H₂SO₄, H₂CO₃, etc.

Strong acids have more H⁺ (aq) ions than weak acids.

Strong acids are HCl, H₂SO₄, HNO₃, etc.

Weak acids are H₂CO₃, H₃PO₄, etc.

Acids have pH less than 7.

Bases: These are substances in which taste bitter. They contain OH⁻ ions.

Example: KOH, NaOH, Ca(OH)₂, Mg(OH)₂ etc.

Strong bases have more OH⁻ (aq) ions than weak bases.

Strong bases are KOH, NaOH, Ca(OH)₂, etc.

Weak bases are Mg(OH)₂, NH₄OH, etc.

Bases have pH more than 7.

Neutralisation Reaction: When a strong acid and a strong base react with each other, they form salt and water.

This salt has a pH = 7.

Example: NaOH + HCl → NaCl + H₂O

Strong Acid + Weak Base → Acidic Salt + Water

Strong Base + Weak Salt → Basic Salt + Water

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