Answer:
i think Aluminum (Al) oxidized, zinc(Zn) reduced
Just look it up on google kodvjkngkrefsnjkvjfrnefsjkj
Calcium Floride (Caf2)
Hope this helped =D
The answer is (3) HClO. In the Cl2, chlorine has an oxidation number of zero. In HCl, the oxidation number is -1. In HClO2, the oxidation number is +3. In HClO, it is +1. You can calculate this by using O with oxidation number of -2 and H with +1.
Rivers, oceans, lakes, ponds