If O2 molecule is saturated with outer electrons how can it gain electrons to form ions?

When electrolyzing copper (ll) chloride, what reaction takes place at the anode? what reaction takes place at the cathode?

What mass of natural gas (ch4) must you burn to emit 276 kj of heat?

The atoms of a solid aluminum can are close together, vibrating in a rigid structure. if the can is warmed up on a hot plate, what happens to the atoms?