oxidation-reduction: flow of energy

Question 1

oxidation is the

Answer 1

loss of electrons (or hydrogen atoms)

Question 2

reduction is the

Answer 2

gain of electrons (or hydrogen atoms)

Question 3

what is a redox reaction

Answer 3

b/c oxidation and reduction occur simultaneously in a reaction

Question 4

ex of a redox reaction

Answer 4

Na 2 8 1–> reducing agent gives up electrons

Cl 2 8 7–> oxidizing agent accepts electrons

result:
Na 2 8–> oxidized cation

Cl 2 8 8–> reduced anion