Is. O2(g) + 2H2O(l) + 4e- > 4OH−(aq)

oxidation or reduction?
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How do i turn 2 s into one in the products

What is the oxidation state of each individual carbon atom in c2o42−?

Pinene is an unsaturated hydrocarbon found in pine resin. if pinene has m+ = 136 and contains 1 double bond(s) and 2 ring(s); what is its molecular formula? enter the formula in the form ch first, then all other atoms in alphabetical order; do not use subscripts. the formula is case-sensitive