Question

oxygen is element or compound​

Answer 1

Answer:

$\sqrt{22 { { \frac{ \frac{. \cot( \tan(e \alpha \pi \sec( \alpha ) ) ) }{?} }{?} }^{?} }^{2} } \times \frac{?}{?}$

Answer 2

oxygen , when only with single atom (ie O) is an element

but when with a molecule of 2 or more atom(O2 etc. ) is a compound

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