Explanation

• Stearic acid is a saturated fatty acid containing 18 carbon atoms (C18:0).
• It has no double bonds between carbon atoms, which makes it saturated.
• It is commonly found in animal fats and some vegetable fats.

Additional information:

• Palmitic acid – Saturated fatty acid (C16:0)
• Oleic acid – Unsaturated fatty acid (C18:1)
• Linoleic acid – Unsaturated fatty acid (C18:2)
• Linolenic acid – Unsaturated fatty acid (C18:3)

Last verified on 11-07-2026

Explanation

• Chemical Name: Acetic Acid (Ethanoic Acid)
• Chemical Formula: CH₃COOH
• Vinegar Concentration: 4–8% Acetic Acid
• Type of Acid: Weak Organic Acid
• Uses: Food seasoning, pickling, preservation, cleaning

Last verified on 10-07-2026

Explanation

• Raw Materials: Ammonia (NH₃) and Carbon Dioxide (CO₂)
• Chemical Formula: CO(NH₂)₂
• Nitrogen Content: 46%
• Type: Nitrogen fertilizer
• Industrial Process: Bosch–Meiser process

Last verified on 09-07-2026

Explanation

• The pH value of pure water at room temperature is 7.
• A pH of 7 means the solution is neutral.
• Pure water contains equal amounts of H⁺ and OH⁻ ions.
• The pH scale ranges from 0 to 14.
• Room temperature is approximately 25°C.

Explanation

• Carbon dioxide (CO₂) is used in fire extinguishers.
• It extinguishes fire by displacing oxygen and cooling the burning material.
• CO₂ fire extinguishers are especially effective for electrical and flammable liquid fires.
• Carbon dioxide is a colorless and non-flammable gas.
• It leaves no residue after use.

Last verified on 09-07-2026