4.2.3-4 - Soluble Salts & Neutralisation

How is a soluble salt formed?

1. React the excess acid with some insoluble chemical (e.g. metal oxide).

2. Filter off the leftovers.

3. Crystallize the product.

What do acids and alkalis produce in aqueous solutions?

Acids produce hydrogen ions, alkalis produce hydroxide ions.

What are bases, acids, and alkalis?

Bases are compounds that neutralize acids, acids produce hydrogen ions in aqueous solutions, alkalis are soluble bases - produce hydroxide ions in aqueous solutions.

What is the pH scale and what does a pH of 7 show?

The measure of acidity/alkalinity of a solution; neutral solution.

State the general equation for a neutralization reaction in short, ionic form.

H⁺+ OH^- → H₂O

Name the following salts: LiNO₃ || K₂CO₃ || MgBr₂ || BaSO₄

lithium nitrate, potassium carbonate, magnesium bromide, barium sulfate