Explanation:
in the presence of excess oxygen methane burns to prduce carbon (iv) oxide and water ....this is called complete combustion...
Answer: option E. None because in all the reactions O2 is in excess
if layer 4 is at the very bottom it would be c
Answer:
1. B- weight
2. B- 2.0g/cm3
3. C- 22.8g/cm3
