classify these substances. More than one answer may apply in each case. [Solved]

Air: heterogeneous mixture

N2: element, pure substance

N2O is actually compound and pure substance

n2:element,pure substance
o2:element,pure substance
n20:compound,pure substance
Air:homogeneous,solution

Air: heterogeneous mixture

n2:element,pure substance
o2:element,pure substance
n20:compound,pure substance
Air:homogeneous,solution

Source(s): Chemistry.

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