An object has a mass of exactly 5g on an analytical balance that has an accuracy of 0.1 mg. To how many significant figures should this mass be recorded

Draw the structure for 5-isopropyl-2-methyl-3-nonene

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?

Which statement names the physical property of wood a. wood is softer than coal b. wood does not rust c. wood can rot d. wood can burn