5. What are salts ? Write any three properties of salts.
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Answer:
Salts are ionic compounds that contain two groups of positively charged ions (H+) and negatively charged ions (OH-). In chemistry, salt is produced when acids and bases are combined together in equal proportions. Whereas naturally, salt is found in sea water. The process where acids and bases neutralize each other to form salt and water is known as neutralization. The chemical formula of common salt is NaCl. NaCl stands for Sodium Chloride. Salt has many uses. For e.g. salt is used for cooking, salt is used during the production of toothpaste, plastic, soaps, bleaches, etc. The pH of salt is 7 which means that it is neutral in nature i.e. it is neither acidic nor basic.
Explanation:
Properties of Salt
Salt is made up of Sodium and Chlorine.
Salt has negatively charged ions (OH-) and positively charged ions (H+).
Due to their oppositely charged ions, the ions are attracted towards each other with an electrostatic force of attraction which is called an ionic bond.
An equal number of opposite charges makes the ionic compounds neutral with no charge.
Salt water is a good conductor of electricity.
Salts are ionic in nature due to the presence of ions.
They are brittle, hard and crystalline solids.
Salt is white, odorless and it has a salty taste.
All potassium (K), ammonium (NH4+) and sodium (Na) salts are soluble in water (H2O).
Nitrites, nitrates, and bicarbonates can be dissolved in water.
All metallic oxides, metallic carbonates, hydroxides, phosphates, and sulphides are insoluble in water.
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