For Iron:

For Oxygen:

These are the two chemical symbols for the two elements found in Iron Oxide.
The correct answer is 7 I just took the test :)
The average speed is 160 meters a minute.
Answer:
The answer IS 0.0000035505. Hope it helps!
Explanation:
Answer
Using the law of reflection—the angle of reflection equals the angle of incidence—we can see that the image and object are the same distance from the mirror. This is a virtual image, since it cannot be projected—the rays only appear to originate from a common point behind the mirror.
Explanation:
Hope this helps someone