D because Carbon and Oxygen form covalent compounds. I wasn't the greatest at chem., but I'm pretty sure this is correct :D let me know if I gave you the right answer.
Answer:
a ) 1876.14 grams CaBr2
b ) 19.78 grams N2
sorry..i only have time to do the first two :)
Explanation:
You spelled bored wrong lol
- Telleurium ( Te) is the chemical symbol
- electron is 52,
- there are 2 electron in 5s
Stannous flutoide is ionic