Name the following structural formula:

C-C-C-C-C-C-C-C-C-C
l
C
l
C

For ai it's atomic number is 13 and it's mass number is 27 how many neutrons does it have

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?

An alloy contains 66 g of pure zinc. what is the percentage of zinc in the alloy? express your answer to two significant figures and include the appropriate units.