Answer:A
Explanation: I learned it from a gizmo
Hi there, the correct answer to this would be reactivity because color, melting point, and density are all examples of physical properties.
First, find moles of oxygen gas: (3.01 x10^23 molec.)/(6.02 x10^23) =0.5mol O2
Second, multiply moles by the standard molar volume of a gas at STP:(0.5mol)(22.4L) = 11.2L O2
