A helium gas balloon was inflated to a volume od 7.2 l inside a store at 33° c what was the vlume of the balloon when it was ralwn outside on a cold day od -21° c Please hurry I’m taking a test right now

Imagine that you own a property that is exactly 2.2 acres large. you want to sell your property, but your realtor tells you that you cannot sell your land by the acre. in order to sell your land you need to determine the area you own in units of square meters? given that there are 1.6 kilometers in 1 mile and 640 acres in 1 square mile, what is the area of land that you own in square meters square meters?

Ascientist measures the speed of sound in a monatomic gas to be 449 m/s at 20∘c. what is the molar mass of this gas?

Which of the following substances is the most soluble in water? a. sodium chloride b. methane c. bromine d. carbon