Explanation:
The Haber process synthesizes ammonia from nitrogen and hydrogen (N₂ + 3H₂ ⇌ 2NH₃). Finely divided iron acts as the catalyst, often with molybdenum as a promoter, to increase the rate of reaction at high pressure and moderate temperature. V₂O₅ is used in the Contact process.
Explanation:
Copper pyrites, also known as chalcopyrite, is the most important and abundant ore of copper. Its chemical formula is CuFeS2. Bauxite is the ore of aluminum, cinnabar is the ore of mercury, and haematite is the primary ore of iron.
Explanation:
The long hydrocarbon chain (tail) of soap is non-polar and hydrophobic, so it dissolves into the oily/greasy dirt particle. The ionic head (hydrophilic) remains in the water. This forms a micelle around the dirt, emulsifying it and allowing it to be washed away. The tail-dirt interaction is via van der Waals forces.
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