1. Hydrochloric acid (HCl): Found in stomach acid and used in various industries, including food processing, metalworking, and leather tanning.

2. Sulfuric acid (H2SO4): One of the most produced chemicals globally, used in industries such as fertilizer production, petroleum refining, and wastewater treatment.

3. Nitric acid (HNO3): Known for its corrosive properties, used in the production of fertilizers, explosives, and dyes.

4. Carbonic acid (H2CO3): Formed when carbon dioxide dissolves in water, responsible for the acidity of carbonated beverages and natural waters.

5. Acetic acid (CH3COOH): Commonly known as vinegar, used as a food preservative, flavoring agent, and cleaning agent.

6. Phosphoric acid (H3PO4): Found in many soft drinks, baked goods, and fertilizers. It is also used as a cleaning agent and rust remover.

7. Citric acid (C6H8O7): Present in citrus fruits, commonly used as a flavor enhancer, preservative, and acidulant in food and beverages.

8. Hydrofluoric acid (HF): Highly corrosive and can dissolve glass, used in the semiconductor industry and glass etching.

9. Lactic acid (CH3CHOHCOOH): Produced by bacteria during fermentation, found in sour milk, yogurt, and some pickled vegetables.

10. Oxalic acid (C2H2O4): Found in rhubarb, sorrel, and spinach, can be toxic in high concentrations, but also used as a cleaning agent and stain remover.