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State 3 ways of preparing acids and write an equation for each ​

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Answer: An acid can be prepared by direct combination of element , dissolving some acidic anhydride in water or by displacement of a weaker or non volatile acids from its salt by a stronger or less volatile acid.

Step-by-step explanation:

1. acid + base ⟶ water + salt.

2. HCl(aq) + KOH(aq) ⟶ H 2O(ℓ) + KCl(aq)

3. HCl(aq) + Mg(OH) 2(aq) ⟶ 2 H 2O(ℓ) + MgCl 2(aq)

4. HCl(aq) + NH3(aq) ⟶ NH4Cl(aq)

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