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Acid by Mind Map: Acid

1. Aqueous solutions of acids conduct electricity.

2. Acids are compounds which gives hydrogen ions, H+ as positive ions when dissolved in water.

3. Definition

4. E.gs

4.1. hydrochloric acid (Hcl)

4.2. Sulfuric acid (H2SO4)

4.3. Nitric acid (HNO3)

4.4. Ethanoic acid (CH3COOH)

4.5. Citirc acid (C6H8O7)

5. Uses

5.1. Lemon and orange juice contain citric acid which is used in the preparation of effervescent salts and as a food preservative.

5.2. Sulfuric acid is used in batteries.

5.3. Nitric acid and sulfuric acid are used in the manufacture of fertilizers, dyes, paints, drugs and explosives.

5.4. Hydrochloric acid is used to make aqua regia, which is used to dissolve noble metals such as gold and platinum.

6. Properties

6.1. Have sour taste

6.2. Corrosive

6.3. pH value is below 7

6.4. Change colours of indicators.

6.5. Litmus paper

6.5.1. Blue litmus paper turns red.

6.5.2. Red litmus paper turns blue in alkali.

7. Reactions

7.1. acid + metal -> hydrogen + salt

7.2. acid + metal carbonate -> carbon dioxide + hydrogen + salt

7.3. acid + alkali -> salt + water