Which of these is an oxidation half-reaction?

v^3++> v^2+
fe+> fe2o3
c^4++2e- > c2+

Which process transfers heat from inside earth to its surface? convection currents in mantle pulling away of tectonic plates drawing in of tectonic plates convection currents in crust

Are oil and water a mixture or solution

Nuclear decay is the spontaneous decay of one element into a. an x-ray b. a ray of light c. another element