Chemistry!! Help me! Which one of the equation is oxidation and which is reduction?
Please explain your answer.

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After cloud droplets form, what must happen to them for precipitation to occur?

What natural processes produce large quantities of co2

The characteristics of two different types of reactions are shown below: reaction a: electrons are gained by the atoms of an element. reaction b: protons are lost by the atom of an element. which statement is true about the atoms of the elements that participate in the two reactions? their identity changes in both reaction a and reaction b. their identity changes in reaction a but not in reaction b. their identity changes in reaction b but not in reaction a. their identity remains the same in both reaction a and reaction b.