Question

State two methods by which salts can be prepared?Give two examples of each

Answer 1

By Double Decomposition
BaCl₂+H₂SO₄→BaSO₄↓+2HCl
AgNO₃+HCl→AgCl↓+HNO₃
Neutralisation
NaOH+HCl→NaCl+H₂O
MgO+2HCl→MgCl₂+H₂O

Answer 2

Answer:

• Salts has been prepared by reaction with a metal or base acid like a metal carbonate, hydroxide, or oxide.  

• The salt includes hydroxides from an acid along with ‘metallic ions’ and ‘negative ions’.
• Most of the metal and non metal chlorides are considered as salts examples- $\mathrm{ZnCl}_{2}$, $\mathrm{MgCl}_{2}$ and NaCl.

• Salts can be present in soluble form or insoluble form.  Metal carbonates can neutralize acids in order to form salts.
• A “salt, water and carbon dioxide” are generated when metal carbonates neutralize acids.
• This implies that acid rain damages rocks, such as calcareous, that contain carbonate compounds.