When objects like a horseshoe are left outside over time, the iron in them will react with oxygen to produce rust. is this a chemical property or iron?

Acylinder is filled with 2.00 moles of nitrogen, 3.00 moles of argon and 5.00 moles of helium. if the gas mixture is at stp, what is the partial pressure of the argon

Which of these statements explains the difference between nuclear binding energy and the strong nuclear force ?

How many grams of oxygen gas are contained in a 15 l sample at 1.02 atm and 28°c? show your work.