1.At room temperature ethene diffuses faster than butene. Explain why. 2.Explain why propane diffuses faster at 100°C than at 60°C.

Name the element in group 17, period 2. (periodic table)

Aroom with dimensions 7.00m×8.00m×2.50m is to be filled with pure oxygen at 22.0∘c and 1.00 atm. the molar mass of oxygen is 32.0 g/mol. how many moles noxygen of oxygen are required to fill the room? what is the mass moxygen of this oxygen?

What is the chemical formula for the compound formed between sodium and flour one