Drain cleaner has a ph of about 14. how can it be classified, based on its ph?

The drain solution would be described as very strongly alkaline. It is on the high end of the pH scale, therefore it is a base.

If you open the bottle of perfume then nothing but the smell will come out of it and yes it is a type of gas smell because it’s say it in english so i can understand better and you

The molar mass of a substance is defined as the mass of 1 mol of that substance, expressed in grams per mole, and is equal to the mass of 6.022 × 10 23 atoms, molecules, or formula units of that substance.