I did this before and i had got an A no it but its been along time tho
Answer:
Two covalent bonds form between the two oxygen atoms because oxygen requires two shared electrons to fill its outermost shell. Nitrogen atoms will form three covalent bonds (also called triple covalent) between two atoms of nitrogen because each nitrogen atom needs three electrons to fill its outermost shell.
2-A
1-B
5-C
4-D
3-E
I hope this helped:)
Answer:
what happened when they removed the limescale?
Explanation:
