Ethanol is a versatile solvent used in medicines like tinctures and perfumes. Ethanoic acid (glacial) can act as a solvent for many organic compounds. Ethyl ethanoate is an excellent solvent for fats, resins, and plastics, often used in nail polish removers and industrial paints.
Explanation:
Electrolysis of water produces pure hydrogen and oxygen: 2H₂O → 2H₂ + O₂. Hydrogen is used in fuel cells to generate electricity. It can also be produced by steam reforming of natural gas, but electrolysis yields clean hydrogen if powered by renewable energy. Combustion of methane produces energy, not hydrogen. Neutralization gives salt and water.
Explanation:
Petroleum gas, also known as natural gas associated with oil deposits, is primarily methane (CH₄) with smaller amounts of ethane, propane, and butane. LPG is propane and butane. Methane is the lightest hydrocarbon. It is separated and used as fuel (CNG) or petrochemical feedstock.
Explanation:
Oxygen (O₂) is an element, a pure substance. Milk is a colloid; brass is an alloy (mixture); sea water is a solution (mixture). Pure substances have fixed composition.
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