The coefficient in a chemical formula represents the amount of each chemical present. The amount of a substance is measured in moles.
Answer:
this one is hard
Explanation:
but it's iron because the sodium so yea there u go.
It has a single valence electron.
3pro & 3ele - it is the single electron in shell 2.
Can you give me the anwsers
Answer:
The answer is in the photo
Explanation:
I hope that is useful for you :)