2FeCl2 + Cl2 → 2FeCl3 a) Record the oxidation number of each element in the boxes provided.

b) Explain why Fe is oxidized and Chlorine is reduced.

c) Why is this reaction a redox reaction?

B

Explanation:

i believe it is-

d.) gravity pulled particles of dust and gas together to form planets.

periodic trends is an atom that gets larger as the number of electronic shells increase, the radius of atoms increases as you go down a certain group in the periodic table of elements. in general, the size of an atom will decrease as you move from left to right of a certain period.