Diazephan or diazepam
No, Valium and Ativan are different medications with different active ingredients. Valium is a trade name (brand name) for the drug "diazepam" and Ativan is a trade name for the drug "lorazepam."...
never
A chemical reaction describes the process wherein reactants combine to form products.
Fermenting is a chemical change because it involves a chemical process whereby sugar is converted into alcohol.