Answer:
colorless odorless gas
two carbon atoms
Explanation:
33
1.Legs
2.Arms and hands
3.Armor
4.Skeletal
5.Carpenters
6.Brain
7.Skin
8.Blood
You can google dem and it will show you all the answers
Both A and B will be unreactive!
10=2, 8
18=2, 8, 8