Answer:
Iron and Oxygen
Explanation:
Fe is Iron and O2 is Oxygen
Answer:
a mixture is a material made up of two or more different substances which are physically combined.
#1
- See H and C have shared their electrons so it's Covalent bonding
#2
Yes here we can see the dots and crosses clearly.
#3
It's Methane or CH_4
#4
There is no double bond
There can only be two electrons in the innermost shell of an atom so b is the correct answer
